457455816 has 64 divisors (see below), whose sum is σ = 1282651200. Its totient is φ = 151052544.

The previous prime is 457455797. The next prime is 457455821. The reversal of 457455816 is 618554754.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13216 + ... + 33008.

It is an arithmetic number, because the mean of its divisors is an integer number (20041425).

Almost surely, 2^457455816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 457455816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641325600).

457455816 is an abundant number, since it is smaller than the sum of its proper divisors (825195384).

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

457455816 is a wasteful number, since it uses less digits than its factorization.

457455816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19915 (or 19905 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 457455816 is about 21388.2167559617. The cubic root of 457455816 is about 770.5184656869.

The spelling of 457455816 in words is "four hundred fifty-seven million, four hundred fifty-five thousand, eight hundred sixteen".