56212940 has 48 divisors (see below), whose sum is σ = 137797632. Its totient is φ = 18860736.

The previous prime is 56212909. The next prime is 56212969. The reversal of 56212940 is 4921265.

It is a happy 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, 2309 + ... + 10851.

It is an arithmetic number, because the mean of its divisors is an integer number (2870784).

Almost surely, 2^56212940 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 56212940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68898816).

56212940 is an abundant number, since it is smaller than the sum of its proper divisors (81584692).

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

56212940 is a wasteful number, since it uses less digits than its factorization.

56212940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8606 (or 8604 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 56212940 is about 7497.5289262530. The cubic root of 56212940 is about 383.0705512582.

The spelling of 56212940 in words is "fifty-six million, two hundred twelve thousand, nine hundred forty".