561432238 has 8 divisors (see below), whose sum is σ = 843570288. Its totient is φ = 280242144.

The previous prime is 561432211. The next prime is 561432281. The reversal of 561432238 is 832234165.

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

It is a congruent number.

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, 235506 + ... + 237877.

It is an arithmetic number, because the mean of its divisors is an integer number (105446286).

Almost surely, 2^561432238 is an apocalyptic number.

561432238 is a deficient number, since it is larger than the sum of its proper divisors (282138050).

561432238 is a wasteful number, since it uses less digits than its factorization.

561432238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473978.

The product of its digits is 34560, while the sum is 34.

The square root of 561432238 is about 23694.5613590967. The cubic root of 561432238 is about 824.9591595332.

The spelling of 561432238 in words is "five hundred sixty-one million, four hundred thirty-two thousand, two hundred thirty-eight".