312929130 has 32 divisors (see below), whose sum is σ = 751503744. Its totient is φ = 83395136.

The previous prime is 312929117. The next prime is 312929131. The reversal of 312929130 is 31929213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (312929131) 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, 77932 + ... + 81848.

It is an arithmetic number, because the mean of its divisors is an integer number (23484492).

Almost surely, 2^312929130 is an apocalyptic number.

312929130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312929130 is an abundant number, since it is smaller than the sum of its proper divisors (438574614).

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

312929130 is a wasteful number, since it uses less digits than its factorization.

312929130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6590.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 312929130 is about 17689.8029949460. The cubic root of 312929130 is about 678.9148855479.

The spelling of 312929130 in words is "three hundred twelve million, nine hundred twenty-nine thousand, one hundred thirty".