457836640 has 24 divisors (see below), whose sum is σ = 1081639440. Its totient is φ = 183134592.

The previous prime is 457836619. The next prime is 457836641. The reversal of 457836640 is 46638754.

It is a super-2 number, since 2×457836640² = 419228777852979200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457836641) 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, 1430580 + ... + 1430899.

It is an arithmetic number, because the mean of its divisors is an integer number (45068310).

Almost surely, 2^457836640 is an apocalyptic number.

457836640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

457836640 is an abundant number, since it is smaller than the sum of its proper divisors (623802800).

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

457836640 is a wasteful number, since it uses less digits than its factorization.

457836640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861494 (or 2861486 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The square root of 457836640 is about 21397.1175628868. The cubic root of 457836640 is about 770.7322207833.

The spelling of 457836640 in words is "four hundred fifty-seven million, eight hundred thirty-six thousand, six hundred forty".