474643690 has 16 divisors (see below), whose sum is σ = 855223560. Its totient is φ = 189665280.

The previous prime is 474643679. The next prime is 474643691. The reversal of 474643690 is 96346474.

It can be written as a sum of positive squares in 4 ways, for example, as 248472169 + 226171521 = 15763^2 + 15039^2 .

It is a super-2 number, since 2×474643690² = 450573264913632200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (474643691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13431 + ... + 33610.

Almost surely, 2^474643690 is an apocalyptic number.

474643690 is a deficient number, since it is larger than the sum of its proper divisors (380579870).

474643690 is a wasteful number, since it uses less digits than its factorization.

474643690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48057.

The product of its (nonzero) digits is 435456, while the sum is 43.

The square root of 474643690 is about 21786.3188721730. The cubic root of 474643690 is about 780.0502323556.

The spelling of 474643690 in words is "four hundred seventy-four million, six hundred forty-three thousand, six hundred ninety".