470721428 has 24 divisors (see below), whose sum is σ = 869652000. Its totient is φ = 222321888.

The previous prime is 470721413. The next prime is 470721439. The reversal of 470721428 is 824127074.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17651 + ... + 35397.

It is an arithmetic number, because the mean of its divisors is an integer number (36235500).

Almost surely, 2^470721428 is an apocalyptic number.

It is an amenable number.

470721428 is a deficient number, since it is larger than the sum of its proper divisors (398930572).

470721428 is a wasteful number, since it uses less digits than its factorization.

470721428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18119 (or 18117 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 470721428 is about 21696.1155048548. The cubic root of 470721428 is about 777.8956140527.

The spelling of 470721428 in words is "four hundred seventy million, seven hundred twenty-one thousand, four hundred twenty-eight".