256320124 has 12 divisors (see below), whose sum is σ = 451067400. Its totient is φ = 127443728.

The previous prime is 256320107. The next prime is 256320139. The reversal of 256320124 is 421023652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178279 + ... + 179710.

It is an arithmetic number, because the mean of its divisors is an integer number (37588950).

Almost surely, 2^256320124 is an apocalyptic number.

It is an amenable number.

256320124 is a deficient number, since it is larger than the sum of its proper divisors (194747276).

256320124 is a wasteful number, since it uses less digits than its factorization.

256320124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358172 (or 358170 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 256320124 is about 16010.0007495315. Note that the first 3 decimals coincide. The cubic root of 256320124 is about 635.2249799039.

Adding to 256320124 its reverse (421023652), we get a palindrome (677343776).

The spelling of 256320124 in words is "two hundred fifty-six million, three hundred twenty thousand, one hundred twenty-four".