256113396 has 216 divisors, whose sum is σ = 838053216. Its totient is φ = 65197440.

The previous prime is 256113391. The next prime is 256113397. The reversal of 256113396 is 693311652.

256113396 is a `hidden beast` number, since 2 + 5 + 611 + 3 + 39 + 6 = 666.

It is a super-2 number, since 2×256113396² = 131188143221305632, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 256113396.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256113391) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1299970 + ... + 1300166.

It is an arithmetic number, because the mean of its divisors is an integer number (3879876).

Almost surely, 2^256113396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256113396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419026608).

256113396 is an abundant number, since it is smaller than the sum of its proper divisors (581939820).

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

256113396 is a wasteful number, since it uses less digits than its factorization.

256113396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 287 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 256113396 is about 16003.5432326719. The cubic root of 256113396 is about 635.0541595156.

The spelling of 256113396 in words is "two hundred fifty-six million, one hundred thirteen thousand, three hundred ninety-six".