457880661 has 64 divisors (see below), whose sum is σ = 816130560. Its totient is φ = 248209920.

The previous prime is 457880617. The next prime is 457880693. The reversal of 457880661 is 166088754.

It is a happy number.

It is not a de Polignac number, because 457880661 - 2⁶ = 457880597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457880611) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 285915 + ... + 287511.

It is an arithmetic number, because the mean of its divisors is an integer number (12752040).

Almost surely, 2^457880661 is an apocalyptic number.

457880661 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

457880661 is a deficient number, since it is larger than the sum of its proper divisors (358249899).

457880661 is a wasteful number, since it uses less digits than its factorization.

457880661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 457880661 is about 21398.1462047533. The cubic root of 457880661 is about 770.7569219633.

The spelling of 457880661 in words is "four hundred fifty-seven million, eight hundred eighty thousand, six hundred sixty-one".