312413256 has 24 divisors (see below), whose sum is σ = 846119430. Its totient is φ = 104137728.

The previous prime is 312413251. The next prime is 312413273. The reversal of 312413256 is 652314213.

It can be written as a sum of positive squares in only one way, i.e., 303804900 + 8608356 = 17430^2 + 2934^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (312413251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2169465 + ... + 2169608.

Almost surely, 2^312413256 is an apocalyptic number.

312413256 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

312413256 is an abundant number, since it is smaller than the sum of its proper divisors (533706174).

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

312413256 is a wasteful number, since it uses less digits than its factorization.

312413256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4339085 (or 4339078 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 312413256 is about 17675.2158685545. The cubic root of 312413256 is about 678.5416091537.

Adding to 312413256 its reverse (652314213), we get a palindrome (964727469).

The spelling of 312413256 in words is "three hundred twelve million, four hundred thirteen thousand, two hundred fifty-six".