561481448 has 16 divisors (see below), whose sum is σ = 1148484960. Its totient is φ = 255218800.

The previous prime is 561481421. The next prime is 561481477. The reversal of 561481448 is 844184165.

It is a happy number.

561481448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×561481448² = 630522832896353408, which contains 22 as substring.

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, 3190148 + ... + 3190323.

It is an arithmetic number, because the mean of its divisors is an integer number (71780310).

Almost surely, 2^561481448 is an apocalyptic number.

It is an amenable number.

561481448 is an abundant number, since it is smaller than the sum of its proper divisors (587003512).

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

561481448 is a wasteful number, since it uses less digits than its factorization.

561481448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6380488 (or 6380484 counting only the distinct ones).

The product of its digits is 122880, while the sum is 41.

The square root of 561481448 is about 23695.5997602930. The cubic root of 561481448 is about 824.9832616133.

The spelling of 561481448 in words is "five hundred sixty-one million, four hundred eighty-one thousand, four hundred forty-eight".