457242828 has 48 divisors (see below), whose sum is σ = 1283493120. Its totient is φ = 123764544.

The previous prime is 457242823. The next prime is 457242859. The reversal of 457242828 is 828242754.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 457242828.

It is not an unprimeable number, because it can be changed into a prime (457242823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141651 + ... + 144842.

It is an arithmetic number, because the mean of its divisors is an integer number (26739440).

Almost surely, 2^457242828 is an apocalyptic number.

It is an amenable number.

457242828 is an abundant number, since it is smaller than the sum of its proper divisors (826250292).

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

457242828 is a wasteful number, since it uses less digits than its factorization.

457242828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286526 (or 286524 counting only the distinct ones).

The product of its digits is 286720, while the sum is 42.

The square root of 457242828 is about 21383.2370795443. The cubic root of 457242828 is about 770.3988645819.

The spelling of 457242828 in words is "four hundred fifty-seven million, two hundred forty-two thousand, eight hundred twenty-eight".