56842240 has 192 divisors, whose sum is σ = 170614080. Its totient is φ = 17694720.

The previous prime is 56842231. The next prime is 56842241. The reversal of 56842240 is 4224865.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56842241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 931810 + ... + 931870.

It is an arithmetic number, because the mean of its divisors is an integer number (888615).

Almost surely, 2^56842240 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 56842240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85307040).

56842240 is an abundant number, since it is smaller than the sum of its proper divisors (113771840).

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

56842240 is a wasteful number, since it uses less digits than its factorization.

56842240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 56842240 is about 7539.3792847953. The cubic root of 56842240 is about 384.4947326996.

The spelling of 56842240 in words is "fifty-six million, eight hundred forty-two thousand, two hundred forty".