561733344 has 36 divisors (see below), whose sum is σ = 1597430016. Its totient is φ = 187244352.

The previous prime is 561733307. The next prime is 561733357. The reversal of 561733344 is 443337165.

561733344 is a `hidden beast` number, since 5 + 617 + 3 + 3 + 34 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×561733344² = 631088699522844672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 561733299 and 561733308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 974944 + ... + 975519.

It is an arithmetic number, because the mean of its divisors is an integer number (44373056).

Almost surely, 2^561733344 is an apocalyptic number.

It is an amenable number.

561733344 is an abundant number, since it is smaller than the sum of its proper divisors (1035696672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561733344 is a wasteful number, since it uses less digits than its factorization.

561733344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950479 (or 1950468 counting only the distinct ones).

The product of its digits is 90720, while the sum is 36.

The square root of 561733344 is about 23700.9144127394. The cubic root of 561733344 is about 825.1066132192.

The spelling of 561733344 in words is "five hundred sixty-one million, seven hundred thirty-three thousand, three hundred forty-four".