561411628 has 12 divisors (see below), whose sum is σ = 990207232. Its totient is φ = 278495280.

The previous prime is 561411607. The next prime is 561411661. The reversal of 561411628 is 826114165.

561411628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×561411628² = 630366032107220768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 561411593 and 561411602.

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, 552063 + ... + 553078.

Almost surely, 2^561411628 is an apocalyptic number.

It is an amenable number.

561411628 is a deficient number, since it is larger than the sum of its proper divisors (428795604).

561411628 is a wasteful number, since it uses less digits than its factorization.

561411628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105272 (or 1105270 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 561411628 is about 23694.1264451762. The cubic root of 561411628 is about 824.9490647464.

The spelling of 561411628 in words is "five hundred sixty-one million, four hundred eleven thousand, six hundred twenty-eight".