561790674 has 32 divisors (see below), whose sum is σ = 1249200000. Its totient is φ = 187147152.

The previous prime is 561790661. The next prime is 561790679. The reversal of 561790674 is 476097165.

It is a happy number.

It is a super-2 number, since 2×561790674² = 631217522786748552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (561790679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160212 + ... + 163680.

It is an arithmetic number, because the mean of its divisors is an integer number (39037500).

Almost surely, 2^561790674 is an apocalyptic number.

561790674 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

561790674 is an abundant number, since it is smaller than the sum of its proper divisors (687409326).

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

561790674 is a wasteful number, since it uses less digits than its factorization.

561790674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6479 (or 6473 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 561790674 is about 23702.1238288893. The cubic root of 561790674 is about 825.1346821440.

The spelling of 561790674 in words is "five hundred sixty-one million, seven hundred ninety thousand, six hundred seventy-four".