402334221312 has 132 divisors (see below), whose sum is σ = 1204759164336. Its totient is φ = 134111324160.

The previous prime is 402334221299. The next prime is 402334221371. The reversal of 402334221312 is 213122433204.

402334221312 is a `hidden beast` number, since 4 + 0 + 2 + 3 + 342 + 2 + 1 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 559614 + ... + 1057277.

Almost surely, 2^402334221312 is an apocalyptic number.

It is an amenable number.

402334221312 is an abundant number, since it is smaller than the sum of its proper divisors (802424943024).

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

402334221312 is an equidigital number, since it uses as much as digits as its factorization.

402334221312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616926 (or 1616896 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 402334221312 its reverse (213122433204), we get a palindrome (615456654516).

The spelling of 402334221312 in words is "four hundred two billion, three hundred thirty-four million, two hundred twenty-one thousand, three hundred twelve".