561416448 has 72 divisors (see below), whose sum is σ = 1542451456. Its totient is φ = 181094400.

The previous prime is 561416437. The next prime is 561416461. The reversal of 561416448 is 844614165.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12018 + ... + 35598.

Almost surely, 2^561416448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561416448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (771225728).

561416448 is an abundant number, since it is smaller than the sum of its proper divisors (981035008).

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

561416448 is a wasteful number, since it uses less digits than its factorization.

561416448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23631 (or 23617 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 561416448 is about 23694.2281579291. The cubic root of 561416448 is about 824.9514256066.

The spelling of 561416448 in words is "five hundred sixty-one million, four hundred sixteen thousand, four hundred forty-eight".