472931930 has 8 divisors (see below), whose sum is σ = 851277492. Its totient is φ = 189172768.

The previous prime is 472931867. The next prime is 472931947. The reversal of 472931930 is 39139274.

It can be written as a sum of positive squares in 2 ways, for example, as 425968321 + 46963609 = 20639^2 + 6853^2 .

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

It is a super-2 number, since 2×472931930² = 447329220827049800, which contains 22 as substring.

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, 23646587 + ... + 23646606.

Almost surely, 2^472931930 is an apocalyptic number.

472931930 is a deficient number, since it is larger than the sum of its proper divisors (378345562).

472931930 is a wasteful number, since it uses less digits than its factorization.

472931930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47293200.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 472931930 is about 21746.9981836574. The cubic root of 472931930 is about 779.1113756921. Note that the first 3 decimals are identical.

The spelling of 472931930 in words is "four hundred seventy-two million, nine hundred thirty-one thousand, nine hundred thirty".