142866720 has 96 divisors (see below), whose sum is σ = 500048640. Its totient is φ = 38096640.

The previous prime is 142866709. The next prime is 142866733. The reversal of 142866720 is 27668241.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12216 + ... + 20855.

It is an arithmetic number, because the mean of its divisors is an integer number (5208840).

Almost surely, 2^142866720 is an apocalyptic number.

142866720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142866720 is an abundant number, since it is smaller than the sum of its proper divisors (357181920).

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

142866720 is a wasteful number, since it uses less digits than its factorization.

142866720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33095 (or 33081 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 142866720 is about 11952.6867272593. The cubic root of 142866720 is about 522.7696402115.

The spelling of 142866720 in words is "one hundred forty-two million, eight hundred sixty-six thousand, seven hundred twenty".