561289434 has 8 divisors (see below), whose sum is σ = 1122578880. Its totient is φ = 187096476.

The previous prime is 561289427. The next prime is 561289483. The reversal of 561289434 is 434982165.

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

561289434 is an admirable 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, 46774114 + ... + 46774125.

It is an arithmetic number, because the mean of its divisors is an integer number (140322360).

Almost surely, 2^561289434 is an apocalyptic number.

561289434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561289434 is a wasteful number, since it uses less digits than its factorization.

561289434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93548244.

The product of its digits is 207360, while the sum is 42.

The square root of 561289434 is about 23691.5477333162. The cubic root of 561289434 is about 824.8892089974.

The spelling of 561289434 in words is "five hundred sixty-one million, two hundred eighty-nine thousand, four hundred thirty-four".