561180238 has 16 divisors (see below), whose sum is σ = 886692240. Its totient is φ = 265636800.

The previous prime is 561180187. The next prime is 561180241. The reversal of 561180238 is 832081165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61108 + ... + 69688.

It is an arithmetic number, because the mean of its divisors is an integer number (55418265).

Almost surely, 2^561180238 is an apocalyptic number.

561180238 is a deficient number, since it is larger than the sum of its proper divisors (325512002).

561180238 is a wasteful number, since it uses less digits than its factorization.

561180238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10323.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 561180238 is about 23689.2430862617. The cubic root of 561180238 is about 824.8357128637.

It can be divided in two parts, 5611 and 80238, that added together give a square (85849 = 293²).

The spelling of 561180238 in words is "five hundred sixty-one million, one hundred eighty thousand, two hundred thirty-eight".