457042656 has 48 divisors (see below), whose sum is σ = 1371129984. Its totient is φ = 130583424.

The previous prime is 457042633. The next prime is 457042661. The reversal of 457042656 is 656240754.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 339390 + ... + 340733.

It is an arithmetic number, because the mean of its divisors is an integer number (28565208).

Almost surely, 2^457042656 is an apocalyptic number.

It is an amenable number.

457042656 is an abundant number, since it is smaller than the sum of its proper divisors (914087328).

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

457042656 is a wasteful number, since it uses less digits than its factorization.

457042656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680143 (or 680135 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

The square root of 457042656 is about 21378.5559849116. Note that the first 3 decimals coincide. The cubic root of 457042656 is about 770.2864263024.

The spelling of 457042656 in words is "four hundred fifty-seven million, forty-two thousand, six hundred fifty-six".