561339238 has 8 divisors (see below), whose sum is σ = 848639232. Its totient is φ = 278459496.

The previous prime is 561339197. The next prime is 561339239. The reversal of 561339238 is 832933165.

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

It is a self number, because there is not a number n which added to its sum of digits gives 561339238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561339239) 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, 1104745 + ... + 1105252.

It is an arithmetic number, because the mean of its divisors is an integer number (106079904).

Almost surely, 2^561339238 is an apocalyptic number.

561339238 is a deficient number, since it is larger than the sum of its proper divisors (287299994).

561339238 is a wasteful number, since it uses less digits than its factorization.

561339238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210126.

The product of its digits is 116640, while the sum is 40.

The square root of 561339238 is about 23692.5988021576. The cubic root of 561339238 is about 824.9136061353.

The spelling of 561339238 in words is "five hundred sixty-one million, three hundred thirty-nine thousand, two hundred thirty-eight".