744381408 has 24 divisors (see below), whose sum is σ = 1954001448. Its totient is φ = 248127104.

The previous prime is 744381401. The next prime is 744381479. The reversal of 744381408 is 804183447.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744381401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3876891 + ... + 3877082.

It is an arithmetic number, because the mean of its divisors is an integer number (81416727).

Almost surely, 2^744381408 is an apocalyptic number.

It is an amenable number.

744381408 is an abundant number, since it is smaller than the sum of its proper divisors (1209620040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

744381408 is a wasteful number, since it uses less digits than its factorization.

744381408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7753986 (or 7753978 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 744381408 is about 27283.3540460113. The cubic root of 744381408 is about 906.2857939854.

The spelling of 744381408 in words is "seven hundred forty-four million, three hundred eighty-one thousand, four hundred eight".