457275440 has 40 divisors (see below), whose sum is σ = 1064358960. Its totient is φ = 182704896.

The previous prime is 457275437. The next prime is 457275457. The reversal of 457275440 is 44572754.

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 = 457275394 and 457275403.

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, 82847 + ... + 88193.

It is an arithmetic number, because the mean of its divisors is an integer number (26608974).

Almost surely, 2^457275440 is an apocalyptic number.

457275440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

457275440 is an abundant number, since it is smaller than the sum of its proper divisors (607083520).

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

457275440 is a wasteful number, since it uses less digits than its factorization.

457275440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6429 (or 6423 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 38.

The square root of 457275440 is about 21383.9996258885. Note that the first 3 decimals coincide. The cubic root of 457275440 is about 770.4171799051.

The spelling of 457275440 in words is "four hundred fifty-seven million, two hundred seventy-five thousand, four hundred forty".