142345780 has 24 divisors (see below), whose sum is σ = 299722752. Its totient is φ = 56786592.

The previous prime is 142345729. The next prime is 142345783. The reversal of 142345780 is 87543241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142345783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1632 + ... + 16951.

It is an arithmetic number, because the mean of its divisors is an integer number (12488448).

Almost surely, 2^142345780 is an apocalyptic number.

142345780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142345780 is an abundant number, since it is smaller than the sum of its proper divisors (157376972).

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

142345780 is a wasteful number, since it uses less digits than its factorization.

142345780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18975 (or 18973 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 142345780 is about 11930.8750726843. The cubic root of 142345780 is about 522.1334685109.

The spelling of 142345780 in words is "one hundred forty-two million, three hundred forty-five thousand, seven hundred eighty".