561980732 has 12 divisors (see below), whose sum is σ = 986630736. Its totient is φ = 280086240.

The previous prime is 561980729. The next prime is 561980743. The reversal of 561980732 is 237089165.

It is a self number, because there is not a number n which added to its sum of digits gives 561980732.

It is a congruent number.

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, 224633 + ... + 227120.

It is an arithmetic number, because the mean of its divisors is an integer number (82219228).

Almost surely, 2^561980732 is an apocalyptic number.

It is an amenable number.

561980732 is a deficient number, since it is larger than the sum of its proper divisors (424650004).

561980732 is a wasteful number, since it uses less digits than its factorization.

561980732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452068 (or 452066 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 561980732 is about 23706.1327930137. The cubic root of 561980732 is about 825.2277214041.

The spelling of 561980732 in words is "five hundred sixty-one million, nine hundred eighty thousand, seven hundred thirty-two".