142397568 has 64 divisors (see below), whose sum is σ = 420280800. Its totient is φ = 47464704.

The previous prime is 142397561. The next prime is 142397581. The reversal of 142397568 is 865793241.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (142397561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17146 + ... + 24057.

Almost surely, 2^142397568 is an apocalyptic number.

142397568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

142397568 is an abundant number, since it is smaller than the sum of its proper divisors (277883232).

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

142397568 is an equidigital number, since it uses as much as digits as its factorization.

142397568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41226 (or 41208 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 142397568 is about 11933.0452106744. The cubic root of 142397568 is about 522.1967814040.

The spelling of 142397568 in words is "one hundred forty-two million, three hundred ninety-seven thousand, five hundred sixty-eight".