461945690 has 8 divisors (see below), whose sum is σ = 831502260. Its totient is φ = 184778272.

The previous prime is 461945621. The next prime is 461945717. The reversal of 461945690 is 96549164.

It can be written as a sum of positive squares in 2 ways, for example, as 443481481 + 18464209 = 21059^2 + 4297^2 .

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

It is a super-2 number, since 2×461945690² = 426787641019152200, 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, 23097275 + ... + 23097294.

Almost surely, 2^461945690 is an apocalyptic number.

461945690 is a deficient number, since it is larger than the sum of its proper divisors (369556570).

461945690 is a wasteful number, since it uses less digits than its factorization.

461945690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46194576.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 461945690 is about 21492.9218581374. The cubic root of 461945690 is about 773.0311118820.

The spelling of 461945690 in words is "four hundred sixty-one million, nine hundred forty-five thousand, six hundred ninety".