561047442 has 8 divisors (see below), whose sum is σ = 1122094896. Its totient is φ = 187015812.

The previous prime is 561047401. The next prime is 561047483. The reversal of 561047442 is 244740165.

It is an interprime number because it is at equal distance from previous prime (561047401) and next prime (561047483).

It is a sphenic number, since it is the product of 3 distinct primes.

561047442 is an admirable number.

It is a super-3 number, since 3×561047442³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46753948 + ... + 46753959.

It is an arithmetic number, because the mean of its divisors is an integer number (140261862).

Almost surely, 2^561047442 is an apocalyptic number.

561047442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

561047442 is a wasteful number, since it uses less digits than its factorization.

561047442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93507912.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 561047442 is about 23686.4400448864. The cubic root of 561047442 is about 824.7706455187.

It can be divided in two parts, 56104 and 7442, that added together give a triangular number (63546 = T₃₅₆).

The spelling of 561047442 in words is "five hundred sixty-one million, forty-seven thousand, four hundred forty-two".