56440446 has 8 divisors (see below), whose sum is σ = 112880904. Its totient is φ = 18813480.

The previous prime is 56440441. The next prime is 56440463. The reversal of 56440446 is 64404465.

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

56440446 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56440441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4703365 + ... + 4703376.

It is an arithmetic number, because the mean of its divisors is an integer number (14110113).

Almost surely, 2^56440446 is an apocalyptic number.

56440446 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.

56440446 is a wasteful number, since it uses less digits than its factorization.

56440446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9406746.

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 56440446 is about 7512.6856715824. The cubic root of 56440446 is about 383.5866455932.

The spelling of 56440446 in words is "fifty-six million, four hundred forty thousand, four hundred forty-six".