744521404 has 24 divisors (see below), whose sum is σ = 1429884288. Its totient is φ = 336389040.

The previous prime is 744521383. The next prime is 744521411. The reversal of 744521404 is 404125447.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43314 + ... + 58009.

It is an arithmetic number, because the mean of its divisors is an integer number (59578512).

Almost surely, 2^744521404 is an apocalyptic number.

It is an amenable number.

744521404 is a deficient number, since it is larger than the sum of its proper divisors (685362884).

744521404 is a wasteful number, since it uses less digits than its factorization.

744521404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101505 (or 101503 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 31.

The square root of 744521404 is about 27285.9195190486. The cubic root of 744521404 is about 906.3426055570.

The spelling of 744521404 in words is "seven hundred forty-four million, five hundred twenty-one thousand, four hundred four".