212057496 has 72 divisors (see below), whose sum is σ = 668100420. Its totient is φ = 60586848.

The previous prime is 212057477. The next prime is 212057497. The reversal of 212057496 is 694750212.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 212057496.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212057497) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 26526 + ... + 33581.

Almost surely, 2^212057496 is an apocalyptic number.

It is an amenable number.

212057496 is an abundant number, since it is smaller than the sum of its proper divisors (456042924).

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

212057496 is a wasteful number, since it uses less digits than its factorization.

212057496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60133 (or 60119 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 212057496 is about 14562.1940654559. The cubic root of 212057496 is about 596.3270954989.

The spelling of 212057496 in words is "two hundred twelve million, fifty-seven thousand, four hundred ninety-six".