256793706 has 64 divisors (see below), whose sum is σ = 623091840. Its totient is φ = 77915520.

The previous prime is 256793659. The next prime is 256793707. The reversal of 256793706 is 607397652.

It is not an unprimeable number, because it can be changed into a prime (256793707) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48741 + ... + 53751.

It is an arithmetic number, because the mean of its divisors is an integer number (9735810).

Almost surely, 2^256793706 is an apocalyptic number.

256793706 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 256793706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311545920).

256793706 is an abundant number, since it is smaller than the sum of its proper divisors (366298134).

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

256793706 is a wasteful number, since it uses less digits than its factorization.

256793706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5108 (or 5102 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

The square root of 256793706 is about 16024.7841171106. The cubic root of 256793706 is about 635.6159571812.

The spelling of 256793706 in words is "two hundred fifty-six million, seven hundred ninety-three thousand, seven hundred six".