457981040 has 40 divisors (see below), whose sum is σ = 1161608688. Its totient is φ = 166538240.

The previous prime is 457981009. The next prime is 457981067. The reversal of 457981040 is 40189754.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 457980985 and 457981003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259337 + ... + 261096.

Almost surely, 2^457981040 is an apocalyptic number.

457981040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

457981040 is an abundant number, since it is smaller than the sum of its proper divisors (703627648).

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

457981040 is a wasteful number, since it uses less digits than its factorization.

457981040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520457 (or 520451 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 457981040 is about 21400.4915831389. The cubic root of 457981040 is about 770.8132409729.

The spelling of 457981040 in words is "four hundred fifty-seven million, nine hundred eighty-one thousand, forty".