212696404 has 24 divisors (see below), whose sum is σ = 386261568. Its totient is φ = 102406080.

The previous prime is 212696347. The next prime is 212696413. The reversal of 212696404 is 404696212.

It is a self number, because there is not a number n which added to its sum of digits gives 212696404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3504 + ... + 20920.

It is an arithmetic number, because the mean of its divisors is an integer number (16094232).

Almost surely, 2^212696404 is an apocalyptic number.

It is an amenable number.

212696404 is a deficient number, since it is larger than the sum of its proper divisors (173565164).

212696404 is a wasteful number, since it uses less digits than its factorization.

212696404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17535 (or 17533 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 212696404 is about 14584.1147828725. The cubic root of 212696404 is about 596.9253863114.

The spelling of 212696404 in words is "two hundred twelve million, six hundred ninety-six thousand, four hundred four".