256842152 has 32 divisors (see below), whose sum is σ = 579345600. Its totient is φ = 104281344.

The previous prime is 256842151. The next prime is 256842199. The reversal of 256842152 is 251248652.

It is a super-2 number, since 2×256842152² = 131935782087982208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (256842151) 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, 119633 + ... + 121760.

It is an arithmetic number, because the mean of its divisors is an integer number (18104550).

Almost surely, 2^256842152 is an apocalyptic number.

It is an amenable number.

256842152 is an abundant number, since it is smaller than the sum of its proper divisors (322503448).

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

256842152 is a wasteful number, since it uses less digits than its factorization.

256842152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241425 (or 241421 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

The square root of 256842152 is about 16026.2956418506. The cubic root of 256842152 is about 635.6559258586.

The spelling of 256842152 in words is "two hundred fifty-six million, eight hundred forty-two thousand, one hundred fifty-two".