561260042 has 16 divisors (see below), whose sum is σ = 972081600. Its totient is φ = 238059648.

The previous prime is 561260023. The next prime is 561260059. The reversal of 561260042 is 240062165.

It is a junction number, because it is equal to n+sod(n) for n = 561259993 and 561260020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205292 + ... + 208007.

It is an arithmetic number, because the mean of its divisors is an integer number (60755100).

Almost surely, 2^561260042 is an apocalyptic number.

561260042 is a deficient number, since it is larger than the sum of its proper divisors (410821558).

561260042 is a wasteful number, since it uses less digits than its factorization.

561260042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413405.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 561260042 is about 23690.9274195841. The cubic root of 561260042 is about 824.8748102663.

The spelling of 561260042 in words is "five hundred sixty-one million, two hundred sixty thousand, forty-two".