478478738 has 8 divisors (see below), whose sum is σ = 740870400. Its totient is φ = 231521940.

The previous prime is 478478701. The next prime is 478478771. The reversal of 478478738 is 837874874.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3858638 + ... + 3858761.

It is an arithmetic number, because the mean of its divisors is an integer number (92608800).

Almost surely, 2^478478738 is an apocalyptic number.

478478738 is a deficient number, since it is larger than the sum of its proper divisors (262391662).

478478738 is a wasteful number, since it uses less digits than its factorization.

478478738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7717432.

The product of its digits is 8429568, while the sum is 56.

The square root of 478478738 is about 21874.1568523223. The cubic root of 478478738 is about 782.1454946087.

The spelling of 478478738 in words is "four hundred seventy-eight million, four hundred seventy-eight thousand, seven hundred thirty-eight".