256142616 has 32 divisors (see below), whose sum is σ = 662439600. Its totient is φ = 82436480.

The previous prime is 256142603. The next prime is 256142639. The reversal of 256142616 is 616241652.

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 7 ways as a sum of consecutive naturals, for example, 183315 + ... + 184706.

Almost surely, 2^256142616 is an apocalyptic number.

It is an amenable number.

256142616 is an abundant number, since it is smaller than the sum of its proper divisors (406296984).

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

256142616 is a wasteful number, since it uses less digits than its factorization.

256142616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368059 (or 368055 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 256142616 is about 16004.4561294659. The cubic root of 256142616 is about 635.0783097256.

The spelling of 256142616 in words is "two hundred fifty-six million, one hundred forty-two thousand, six hundred sixteen".