561628296 has 64 divisors (see below), whose sum is σ = 1642200000. Its totient is φ = 177355008.

The previous prime is 561628273. The next prime is 561628307. The reversal of 561628296 is 692826165.

561628296 is a `hidden beast` number, since 5 + 616 + 2 + 8 + 29 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64321 + ... + 72528.

It is an arithmetic number, because the mean of its divisors is an integer number (25659375).

Almost surely, 2^561628296 is an apocalyptic number.

It is an amenable number.

561628296 is an abundant number, since it is smaller than the sum of its proper divisors (1080571704).

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

561628296 is a wasteful number, since it uses less digits than its factorization.

561628296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136883 (or 136873 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 561628296 is about 23698.6981920949. The cubic root of 561628296 is about 825.0551764750.

The spelling of 561628296 in words is "five hundred sixty-one million, six hundred twenty-eight thousand, two hundred ninety-six".