457505644 has 6 divisors (see below), whose sum is σ = 800634884. Its totient is φ = 228752820.

The previous prime is 457505639. The next prime is 457505663. The reversal of 457505644 is 446505754.

It is a happy number.

It is a super-2 number, since 2×457505644² = 418622828583709472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 457505597 and 457505606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57188202 + ... + 57188209.

Almost surely, 2^457505644 is an apocalyptic number.

It is an amenable number.

457505644 is a deficient number, since it is larger than the sum of its proper divisors (343129240).

457505644 is a wasteful number, since it uses less digits than its factorization.

457505644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114376415 (or 114376413 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 40.

The square root of 457505644 is about 21389.3815712376. The cubic root of 457505644 is about 770.5464407021.

The spelling of 457505644 in words is "four hundred fifty-seven million, five hundred five thousand, six hundred forty-four".