561040376 has 32 divisors (see below), whose sum is σ = 1143480240. Its totient is φ = 256516608.

The previous prime is 561040373. The next prime is 561040391. The reversal of 561040376 is 673040165.

561040376 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561040373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14081 + ... + 36336.

Almost surely, 2^561040376 is an apocalyptic number.

It is an amenable number.

561040376 is an abundant number, since it is smaller than the sum of its proper divisors (582439864).

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

561040376 is a wasteful number, since it uses less digits than its factorization.

561040376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50543 (or 50539 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 561040376 is about 23686.2908873466. The cubic root of 561040376 is about 824.7671830344.

The spelling of 561040376 in words is "five hundred sixty-one million, forty thousand, three hundred seventy-six".