457666212 has 12 divisors (see below), whose sum is σ = 1067887856. Its totient is φ = 152555400.

The previous prime is 457666211. The next prime is 457666219. The reversal of 457666212 is 212666754.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (457666211) 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, 19069414 + ... + 19069437.

Almost surely, 2^457666212 is an apocalyptic number.

It is an amenable number.

457666212 is an abundant number, since it is smaller than the sum of its proper divisors (610221644).

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

457666212 is a wasteful number, since it uses less digits than its factorization.

457666212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38138858 (or 38138856 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 457666212 is about 21393.1346931673. The cubic root of 457666212 is about 770.6365748392.

The spelling of 457666212 in words is "four hundred fifty-seven million, six hundred sixty-six thousand, two hundred twelve".