561852240 has 80 divisors (see below), whose sum is σ = 1749584448. Its totient is φ = 149152768.

The previous prime is 561852223. The next prime is 561852251. The reversal of 561852240 is 42258165.

561852240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 49324 + ... + 59636.

Almost surely, 2^561852240 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 561852240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (874792224).

561852240 is an abundant number, since it is smaller than the sum of its proper divisors (1187732208).

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

561852240 is a wasteful number, since it uses less digits than its factorization.

561852240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10556 (or 10550 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 561852240 is about 23703.4225376843. The cubic root of 561852240 is about 825.1648228996.

The spelling of 561852240 in words is "five hundred sixty-one million, eight hundred fifty-two thousand, two hundred forty".