312880534 has 16 divisors (see below), whose sum is σ = 473028048. Its totient is φ = 155208672.

The previous prime is 312880517. The next prime is 312880537. The reversal of 312880534 is 435088213.

It is a happy number.

It is a super-2 number, since 2×312880534² = 195788457112250312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312880534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312880537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313324 + ... + 314320.

It is an arithmetic number, because the mean of its divisors is an integer number (29564253).

Almost surely, 2^312880534 is an apocalyptic number.

312880534 is a deficient number, since it is larger than the sum of its proper divisors (160147514).

312880534 is a wasteful number, since it uses less digits than its factorization.

312880534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 312880534 is about 17688.4293819434. The cubic root of 312880534 is about 678.8797399376.

The spelling of 312880534 in words is "three hundred twelve million, eight hundred eighty thousand, five hundred thirty-four".