731145944 has 8 divisors (see below), whose sum is σ = 1370898660. Its totient is φ = 365572968.

The previous prime is 731145931. The next prime is 731145967. The reversal of 731145944 is 449541137.

731145944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×731145944² = 1069148782855302272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 731145898 and 731145907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45696614 + ... + 45696629.

Almost surely, 2^731145944 is an apocalyptic number.

It is an amenable number.

731145944 is a deficient number, since it is larger than the sum of its proper divisors (639752716).

731145944 is a wasteful number, since it uses less digits than its factorization.

731145944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91393249 (or 91393245 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 731145944 is about 27039.7105014088. The cubic root of 731145944 is about 900.8822394148.

The spelling of 731145944 in words is "seven hundred thirty-one million, one hundred forty-five thousand, nine hundred forty-four".