561948338 has 32 divisors (see below), whose sum is σ = 989936640. Its totient is φ = 234234000.

The previous prime is 561948329. The next prime is 561948349. The reversal of 561948338 is 833849165.

It is a junction number, because it is equal to n+sod(n) for n = 561948292 and 561948301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149243 + ... + 152961.

It is an arithmetic number, because the mean of its divisors is an integer number (30935520).

Almost surely, 2^561948338 is an apocalyptic number.

561948338 is a deficient number, since it is larger than the sum of its proper divisors (427988302).

561948338 is a wasteful number, since it uses less digits than its factorization.

561948338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022.

The product of its digits is 622080, while the sum is 47.

The square root of 561948338 is about 23705.4495422466. The cubic root of 561948338 is about 825.2118650239.

The spelling of 561948338 in words is "five hundred sixty-one million, nine hundred forty-eight thousand, three hundred thirty-eight".