472442661 has 12 divisors (see below), whose sum is σ = 692603392. Its totient is φ = 310260456.

The previous prime is 472442647. The next prime is 472442669. The reversal of 472442661 is 166244274.

It is not a de Polignac number, because 472442661 - 2¹⁵ = 472409893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472442669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 391141 + ... + 392346.

Almost surely, 2^472442661 is an apocalyptic number.

It is an amenable number.

472442661 is a deficient number, since it is larger than the sum of its proper divisors (220160731).

472442661 is a wasteful number, since it uses less digits than its factorization.

472442661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783560 (or 783557 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 472442661 is about 21735.7461569646. The cubic root of 472442661 is about 778.8426079270.

The spelling of 472442661 in words is "four hundred seventy-two million, four hundred forty-two thousand, six hundred sixty-one".