457478540 has 12 divisors (see below), whose sum is σ = 960704976. Its totient is φ = 182991408.

The previous prime is 457478537. The next prime is 457478543. The reversal of 457478540 is 45874754.

It is an interprime number because it is at equal distance from previous prime (457478537) and next prime (457478543).

It is a super-2 number, since 2×457478540² = 418573229121063200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 457478491 and 457478500.

It is not an unprimeable number, because it can be changed into a prime (457478543) 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, 11436944 + ... + 11436983.

It is an arithmetic number, because the mean of its divisors is an integer number (80058748).

Almost surely, 2^457478540 is an apocalyptic number.

It is an amenable number.

457478540 is an abundant number, since it is smaller than the sum of its proper divisors (503226436).

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

457478540 is a wasteful number, since it uses less digits than its factorization.

457478540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22873936 (or 22873934 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 44.

The square root of 457478540 is about 21388.7479764478. The cubic root of 457478540 is about 770.5312239111.

The spelling of 457478540 in words is "four hundred fifty-seven million, four hundred seventy-eight thousand, five hundred forty".