478909456 has 15 divisors (see below), whose sum is σ = 928056703. Its totient is φ = 239410960.

The previous prime is 478909441. The next prime is 478909493. The reversal of 478909456 is 654909874.

It is a happy number.

The square root of 478909456 is 21884.

It is a perfect power (a square), and thus also a powerful number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 84801 + ... + 90271.

Almost surely, 2^478909456 is an apocalyptic number.

478909456 is the 21884-th square number.

It is an amenable number.

478909456 is a deficient number, since it is larger than the sum of its proper divisors (449147247).

478909456 is an frugal number, since it uses more digits than its factorization.

478909456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10950 (or 5473 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The cubic root of 478909456 is about 782.3801153495.

The spelling of 478909456 in words is "four hundred seventy-eight million, nine hundred nine thousand, four hundred fifty-six".