457872478 has 8 divisors (see below), whose sum is σ = 784924272. Its totient is φ = 196231056.

The previous prime is 457872463. The next prime is 457872479. The reversal of 457872478 is 874278754.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×457872478² = 419294412219720968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457872479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16352575 + ... + 16352602.

It is an arithmetic number, because the mean of its divisors is an integer number (98115534).

Almost surely, 2^457872478 is an apocalyptic number.

457872478 is a deficient number, since it is larger than the sum of its proper divisors (327051794).

457872478 is a wasteful number, since it uses less digits than its factorization.

457872478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32705186.

The product of its digits is 3512320, while the sum is 52.

The square root of 457872478 is about 21397.9549957467. The cubic root of 457872478 is about 770.7523304165.

The spelling of 457872478 in words is "four hundred fifty-seven million, eight hundred seventy-two thousand, four hundred seventy-eight".