478521332 has 48 divisors (see below), whose sum is σ = 900609024. Its totient is φ = 222048000.

The previous prime is 478521283. The next prime is 478521343. The reversal of 478521332 is 233125874.

Its product of digits (40320) is a multiple of the sum of its prime factors (1680).

It is a junction number, because it is equal to n+sod(n) for n = 478521292 and 478521301.

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, 309353 + ... + 310895.

It is an arithmetic number, because the mean of its divisors is an integer number (18762688).

Almost surely, 2^478521332 is an apocalyptic number.

It is an amenable number.

478521332 is a deficient number, since it is larger than the sum of its proper divisors (422087692).

478521332 is a wasteful number, since it uses less digits than its factorization.

478521332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680 (or 1678 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 478521332 is about 21875.1304453253. The cubic root of 478521332 is about 782.1687026874.

The spelling of 478521332 in words is "four hundred seventy-eight million, five hundred twenty-one thousand, three hundred thirty-two".