142394580 has 36 divisors (see below), whose sum is σ = 431930772. Its totient is φ = 37971840.

The previous prime is 142394509. The next prime is 142394591. The reversal of 142394580 is 85493241.

142394580 is a `hidden beast` number, since 1 + 42 + 39 + 4 + 580 = 666.

142394580 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 24324624 + 118069956 = 4932^2 + 10866^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

142394580 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 395361 + ... + 395720.

It is an arithmetic number, because the mean of its divisors is an integer number (11998077).

Almost surely, 2^142394580 is an apocalyptic number.

142394580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142394580 is an abundant number, since it is smaller than the sum of its proper divisors (289536192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142394580 is a wasteful number, since it uses less digits than its factorization.

142394580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791096 (or 791091 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 142394580 is about 11932.9200114641. The cubic root of 142394580 is about 522.1931288723.

The spelling of 142394580 in words is "one hundred forty-two million, three hundred ninety-four thousand, five hundred eighty".