743716644 has 24 divisors (see below), whose sum is σ = 1893097248. Its totient is φ = 225368640.

The previous prime is 743716643. The next prime is 743716679. The reversal of 743716644 is 446617347.

It is a super-2 number, since 2×743716644² = 1106228893125245472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 743716596 and 743716605.

It is not an unprimeable number, because it can be changed into a prime (743716643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2816977 + ... + 2817240.

It is an arithmetic number, because the mean of its divisors is an integer number (78879052).

Almost surely, 2^743716644 is an apocalyptic number.

It is an amenable number.

743716644 is an abundant number, since it is smaller than the sum of its proper divisors (1149380604).

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

743716644 is a wasteful number, since it uses less digits than its factorization.

743716644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634235 (or 5634233 counting only the distinct ones).

The product of its digits is 338688, while the sum is 42.

The square root of 743716644 is about 27271.1687318311. The cubic root of 743716644 is about 906.0159298204.

The spelling of 743716644 in words is "seven hundred forty-three million, seven hundred sixteen thousand, six hundred forty-four".