402212020432 has 20 divisors (see below), whose sum is σ = 787001493636. Its totient is φ = 199114860800.

The previous prime is 402212020429. The next prime is 402212020481. The reversal of 402212020432 is 234020212204.

It can be written as a sum of positive squares in 2 ways, for example, as 287171661456 + 115040358976 = 535884^2 + 339176^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124445173 + ... + 124448404.

Almost surely, 2^402212020432 is an apocalyptic number.

It is an amenable number.

402212020432 is a deficient number, since it is larger than the sum of its proper divisors (384789473204).

402212020432 is a wasteful number, since it uses less digits than its factorization.

402212020432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248893686 (or 248893680 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 402212020432 its reverse (234020212204), we get a palindrome (636232232636).

The spelling of 402212020432 in words is "four hundred two billion, two hundred twelve million, twenty thousand, four hundred thirty-two".