561342930 has 32 divisors (see below), whose sum is σ = 1349371008. Its totient is φ = 149452800.

The previous prime is 561342919. The next prime is 561342989. The reversal of 561342930 is 39243165.

561342930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 561342891 and 561342900.

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, 4635 + ... + 33825.

It is an arithmetic number, because the mean of its divisors is an integer number (42167844).

Almost surely, 2^561342930 is an apocalyptic number.

561342930 is an abundant number, since it is smaller than the sum of its proper divisors (788028078).

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

561342930 is a wasteful number, since it uses less digits than its factorization.

561342930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29842.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 561342930 is about 23692.6767166566. The cubic root of 561342930 is about 824.9154146521.

The spelling of 561342930 in words is "five hundred sixty-one million, three hundred forty-two thousand, nine hundred thirty".