256412310 has 96 divisors (see below), whose sum is σ = 773127936. Its totient is φ = 53275200.

The previous prime is 256412297. The next prime is 256412323. The reversal of 256412310 is 13214652.

It is an interprime number because it is at equal distance from previous prime (256412297) and next prime (256412323).

It is a super-2 number, since 2×256412310² = 131494545439072200, which contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 20365 + ... + 30455.

It is an arithmetic number, because the mean of its divisors is an integer number (8053416).

Almost surely, 2^256412310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256412310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386563968).

256412310 is an abundant number, since it is smaller than the sum of its proper divisors (516715626).

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

256412310 is a wasteful number, since it uses less digits than its factorization.

256412310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10130 (or 10119 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 256412310 is about 16012.8795036995. The cubic root of 256412310 is about 635.3011240503.

Adding to 256412310 its reverse (13214652), we get a palindrome (269626962).

The spelling of 256412310 in words is "two hundred fifty-six million, four hundred twelve thousand, three hundred ten".