731445044 has 12 divisors (see below), whose sum is σ = 1396395168. Its totient is φ = 332475000.

The previous prime is 731445041. The next prime is 731445049. The reversal of 731445044 is 440544137.

It is a self number, because there is not a number n which added to its sum of digits gives 731445044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731445041) 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, 8311832 + ... + 8311919.

It is an arithmetic number, because the mean of its divisors is an integer number (116366264).

Almost surely, 2^731445044 is an apocalyptic number.

It is an amenable number.

731445044 is a deficient number, since it is larger than the sum of its proper divisors (664950124).

731445044 is a wasteful number, since it uses less digits than its factorization.

731445044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16623766 (or 16623764 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 731445044 is about 27045.2406903692. The cubic root of 731445044 is about 901.0050681265.

The spelling of 731445044 in words is "seven hundred thirty-one million, four hundred forty-five thousand, forty-four".