56909442 has 8 divisors (see below), whose sum is σ = 113818896. Its totient is φ = 18969812.

The previous prime is 56909431. The next prime is 56909449. The reversal of 56909442 is 24490965.

It is a sphenic number, since it is the product of 3 distinct primes.

56909442 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 56909442.

It is not an unprimeable number, because it can be changed into a prime (56909449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4742448 + ... + 4742459.

It is an arithmetic number, because the mean of its divisors is an integer number (14227362).

Almost surely, 2^56909442 is an apocalyptic number.

56909442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

56909442 is a wasteful number, since it uses less digits than its factorization.

56909442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9484912.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 56909442 is about 7543.8347012643. The cubic root of 56909442 is about 384.6461965818.

The spelling of 56909442 in words is "fifty-six million, nine hundred nine thousand, four hundred forty-two".