561940376 has 16 divisors (see below), whose sum is σ = 1058366400. Its totient is φ = 279709344.

The previous prime is 561940373. The next prime is 561940387. The reversal of 561940376 is 673049165.

561940376 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 (561940373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155711 + ... + 159278.

It is an arithmetic number, because the mean of its divisors is an integer number (66147900).

Almost surely, 2^561940376 is an apocalyptic number.

It is an amenable number.

561940376 is a deficient number, since it is larger than the sum of its proper divisors (496426024).

561940376 is a wasteful number, since it uses less digits than its factorization.

561940376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315218 (or 315214 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 561940376 is about 23705.2816055832. The cubic root of 561940376 is about 825.2079676503.

The spelling of 561940376 in words is "five hundred sixty-one million, nine hundred forty thousand, three hundred seventy-six".