312063402 has 64 divisors (see below), whose sum is σ = 764504064. Its totient is φ = 82969920.

The previous prime is 312063377. The next prime is 312063419. The reversal of 312063402 is 204360213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31377 + ... + 40107.

It is an arithmetic number, because the mean of its divisors is an integer number (11945376).

Almost surely, 2^312063402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312063402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382252032).

312063402 is an abundant number, since it is smaller than the sum of its proper divisors (452440662).

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

312063402 is a wasteful number, since it uses less digits than its factorization.

312063402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8803.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 312063402 is about 17665.3163572012. The cubic root of 312063402 is about 678.2882277108.

The spelling of 312063402 in words is "three hundred twelve million, sixty-three thousand, four hundred two".