470721730 has 8 divisors (see below), whose sum is σ = 847299132. Its totient is φ = 188288688.

The previous prime is 470721683. The next prime is 470721761. The reversal of 470721730 is 37127074.

It can be written as a sum of positive squares in 2 ways, for example, as 391208841 + 79512889 = 19779^2 + 8917^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 470721692 and 470721701.

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, 23536077 + ... + 23536096.

Almost surely, 2^470721730 is an apocalyptic number.

470721730 is a deficient number, since it is larger than the sum of its proper divisors (376577402).

470721730 is a wasteful number, since it uses less digits than its factorization.

470721730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47072180.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 470721730 is about 21696.1224646249. The cubic root of 470721730 is about 777.8957804104.

The spelling of 470721730 in words is "four hundred seventy million, seven hundred twenty-one thousand, seven hundred thirty".