212464456 has 16 divisors (see below), whose sum is σ = 403829100. Its totient is φ = 104776704.

The previous prime is 212464451. The next prime is 212464459. The reversal of 212464456 is 654464212.

212464456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 186759556 + 25704900 = 13666^2 + 5070^2 .

It is a super-2 number, since 2×212464456² = 90282290126751872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212464451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181321 + ... + 182488.

Almost surely, 2^212464456 is an apocalyptic number.

It is an amenable number.

212464456 is a deficient number, since it is larger than the sum of its proper divisors (191364644).

212464456 is a wasteful number, since it uses less digits than its factorization.

212464456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363888 (or 363884 counting only the distinct ones).

The product of its digits is 46080, while the sum is 34.

The square root of 212464456 is about 14576.1605369864. The cubic root of 212464456 is about 596.7083226052.

The spelling of 212464456 in words is "two hundred twelve million, four hundred sixty-four thousand, four hundred fifty-six".