312232056 has 64 divisors (see below), whose sum is σ = 809464320. Its totient is φ = 100289280.

The previous prime is 312232021. The next prime is 312232057. The reversal of 312232056 is 650232213.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312232057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79761 + ... + 83583.

It is an arithmetic number, because the mean of its divisors is an integer number (12647880).

Almost surely, 2^312232056 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 312232056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404732160).

312232056 is an abundant number, since it is smaller than the sum of its proper divisors (497232264).

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

312232056 is a wasteful number, since it uses less digits than its factorization.

312232056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956 (or 3952 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 312232056 is about 17670.0893036793. The cubic root of 312232056 is about 678.4103988464.

Adding to 312232056 its reverse (650232213), we get a palindrome (962464269).

The spelling of 312232056 in words is "three hundred twelve million, two hundred thirty-two thousand, fifty-six".