402313312 has 12 divisors (see below), whose sum is σ = 792054396. Its totient is φ = 201156640.

The previous prime is 402313291. The next prime is 402313333. The reversal of 402313312 is 213313204.

It is an interprime number because it is at equal distance from previous prime (402313291) and next prime (402313333).

It is a self number, because there is not a number n which added to its sum of digits gives 402313312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6286114 + ... + 6286177.

It is an arithmetic number, because the mean of its divisors is an integer number (66004533).

Almost surely, 2^402313312 is an apocalyptic number.

It is an amenable number.

402313312 is a deficient number, since it is larger than the sum of its proper divisors (389741084).

402313312 is a wasteful number, since it uses less digits than its factorization.

402313312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12572301 (or 12572293 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 402313312 is about 20057.7494250975. The cubic root of 402313312 is about 738.2239560414.

Adding to 402313312 its reverse (213313204), we get a palindrome (615626516).

The spelling of 402313312 in words is "four hundred two million, three hundred thirteen thousand, three hundred twelve".