744405944 has 8 divisors (see below), whose sum is σ = 1395761160. Its totient is φ = 372202968.

The previous prime is 744405943. The next prime is 744405947. The reversal of 744405944 is 449504447.

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

It is a super-2 number, since 2×744405944² = 1108280418925062272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744405941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46525364 + ... + 46525379.

It is an arithmetic number, because the mean of its divisors is an integer number (174470145).

Almost surely, 2^744405944 is an apocalyptic number.

It is an amenable number.

744405944 is a deficient number, since it is larger than the sum of its proper divisors (651355216).

744405944 is a wasteful number, since it uses less digits than its factorization.

744405944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93050749 (or 93050745 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 41.

The square root of 744405944 is about 27283.8036937667. The cubic root of 744405944 is about 906.2957514183.

The spelling of 744405944 in words is "seven hundred forty-four million, four hundred five thousand, nine hundred forty-four".