478974446 has 4 divisors (see below), whose sum is σ = 718461672. Its totient is φ = 239487222.

The previous prime is 478974437. The next prime is 478974451. The reversal of 478974446 is 644479874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 644479874 = 2 ⋅322239937.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119743610 + ... + 119743613.

It is an arithmetic number, because the mean of its divisors is an integer number (179615418).

Almost surely, 2^478974446 is an apocalyptic number.

478974446 is a deficient number, since it is larger than the sum of its proper divisors (239487226).

478974446 is a wasteful number, since it uses less digits than its factorization.

478974446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239487225.

The product of its digits is 5419008, while the sum is 53.

The square root of 478974446 is about 21885.4848244219. The cubic root of 478974446 is about 782.4155044912.

The spelling of 478974446 in words is "four hundred seventy-eight million, nine hundred seventy-four thousand, four hundred forty-six".