478164720 has 80 divisors (see below), whose sum is σ = 1617075072. Its totient is φ = 115918080.

The previous prime is 478164707. The next prime is 478164749. The reversal of 478164720 is 27461874.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 87922 + ... + 93201.

Almost surely, 2^478164720 is an apocalyptic number.

478164720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

478164720 is an abundant number, since it is smaller than the sum of its proper divisors (1138910352).

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

478164720 is a wasteful number, since it uses less digits than its factorization.

478164720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181150 (or 181144 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 478164720 is about 21866.9778433143. The cubic root of 478164720 is about 781.9743539403.

The spelling of 478164720 in words is "four hundred seventy-eight million, one hundred sixty-four thousand, seven hundred twenty".