561377234 has 8 divisors (see below), whose sum is σ = 918617328. Its totient is φ = 255171460.

The previous prime is 561377221. The next prime is 561377251. The reversal of 561377234 is 432773165.

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

It is a Curzon 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, 12758552 + ... + 12758595.

It is an arithmetic number, because the mean of its divisors is an integer number (114827166).

Almost surely, 2^561377234 is an apocalyptic number.

561377234 is a deficient number, since it is larger than the sum of its proper divisors (357240094).

561377234 is a wasteful number, since it uses less digits than its factorization.

561377234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25517160.

The product of its digits is 105840, while the sum is 38.

The square root of 561377234 is about 23693.4006423730. The cubic root of 561377234 is about 824.9322180002.

The spelling of 561377234 in words is "five hundred sixty-one million, three hundred seventy-seven thousand, two hundred thirty-four".