56440329 has 24 divisors (see below), whose sum is σ = 83694240. Its totient is φ = 33802560.

The previous prime is 56440291. The next prime is 56440333. The reversal of 56440329 is 92304465.

56440329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56440329 - 2⁸ = 56440073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 56440329.

It is not an unprimeable number, because it can be changed into a prime (56440339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31434 + ... + 33180.

It is an arithmetic number, because the mean of its divisors is an integer number (3487260).

Almost surely, 2^56440329 is an apocalyptic number.

It is an amenable number.

56440329 is a deficient number, since it is larger than the sum of its proper divisors (27253911).

56440329 is a wasteful number, since it uses less digits than its factorization.

56440329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861 (or 1850 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 56440329 is about 7512.6778847492. The cubic root of 56440329 is about 383.5863805370.

The spelling of 56440329 in words is "fifty-six million, four hundred forty thousand, three hundred twenty-nine".