457478384 has 80 divisors (see below), whose sum is σ = 989270016. Its totient is φ = 203212800.

The previous prime is 457478383. The next prime is 457478431. The reversal of 457478384 is 483874754.

Its product of digits (3010560) is a multiple of the sum of its prime divisors (448).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457478383) 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, 2168039 + ... + 2168249.

Almost surely, 2^457478384 is an apocalyptic number.

457478384 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 457478384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (494635008).

457478384 is an abundant number, since it is smaller than the sum of its proper divisors (531791632).

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

457478384 is a wasteful number, since it uses less digits than its factorization.

457478384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 448 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 50.

The square root of 457478384 is about 21388.7443296702. The cubic root of 457478384 is about 770.5311363275.

The spelling of 457478384 in words is "four hundred fifty-seven million, four hundred seventy-eight thousand, three hundred eighty-four".