312243032 has 16 divisors (see below), whose sum is σ = 610910640. Its totient is φ = 149333536.

The previous prime is 312243031. The next prime is 312243049. The reversal of 312243032 is 230342213.

It is a super-2 number, since 2×312243032² = 194991422065106048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312242995 and 312243013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312243031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 848303 + ... + 848670.

It is an arithmetic number, because the mean of its divisors is an integer number (38181915).

Almost surely, 2^312243032 is an apocalyptic number.

It is an amenable number.

312243032 is a deficient number, since it is larger than the sum of its proper divisors (298667608).

312243032 is a wasteful number, since it uses less digits than its factorization.

312243032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697002 (or 1696998 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 312243032 is about 17670.3998822890. The cubic root of 312243032 is about 678.4183482173.

Adding to 312243032 its reverse (230342213), we get a palindrome (542585245).

The spelling of 312243032 in words is "three hundred twelve million, two hundred forty-three thousand, thirty-two".