561340476 has 48 divisors (see below), whose sum is σ = 1540939680. Its totient is φ = 176106240.

The previous prime is 561340463. The next prime is 561340477. The reversal of 561340476 is 674043165.

It is a happy number.

561340476 is a `hidden beast` number, since 56 + 134 + 0 + 476 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 561340476.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561340477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151035 + ... + 154706.

It is an arithmetic number, because the mean of its divisors is an integer number (32102910).

Almost surely, 2^561340476 is an apocalyptic number.

It is an amenable number.

561340476 is an abundant number, since it is smaller than the sum of its proper divisors (979599204).

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

561340476 is a wasteful number, since it uses less digits than its factorization.

561340476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305771 (or 305763 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 561340476 is about 23692.6249284456. The cubic root of 561340476 is about 824.9142125673.

The spelling of 561340476 in words is "five hundred sixty-one million, three hundred forty thousand, four hundred seventy-six".