457544442 has 48 divisors (see below), whose sum is σ = 959146272. Its totient is φ = 145454400.

The previous prime is 457544431. The next prime is 457544447. The reversal of 457544442 is 244445754.

It is a self number, because there is not a number n which added to its sum of digits gives 457544442.

It is not an unprimeable number, because it can be changed into a prime (457544447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 434817 + ... + 435867.

It is an arithmetic number, because the mean of its divisors is an integer number (19982214).

Almost surely, 2^457544442 is an apocalyptic number.

457544442 is an abundant number, since it is smaller than the sum of its proper divisors (501601830).

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

457544442 is a wasteful number, since it uses less digits than its factorization.

457544442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183 (or 1146 counting only the distinct ones).

The product of its digits is 358400, while the sum is 39.

The square root of 457544442 is about 21390.2884973532. The cubic root of 457544442 is about 770.5682217199.

The spelling of 457544442 in words is "four hundred fifty-seven million, five hundred forty-four thousand, four hundred forty-two".