743716660 has 48 divisors (see below), whose sum is σ = 1618670592. Its totient is φ = 286732800.

The previous prime is 743716643. The next prime is 743716679. The reversal of 743716660 is 66617347.

It is a super-2 number, since 2×743716660² = 1106228940723111200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160780 + ... + 165340.

It is an arithmetic number, because the mean of its divisors is an integer number (33722304).

Almost surely, 2^743716660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 743716660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (809335296).

743716660 is an abundant number, since it is smaller than the sum of its proper divisors (874953932).

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

743716660 is a wasteful number, since it uses less digits than its factorization.

743716660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4864 (or 4862 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 743716660 is about 27271.1690251812. The cubic root of 743716660 is about 906.0159363177.

The spelling of 743716660 in words is "seven hundred forty-three million, seven hundred sixteen thousand, six hundred sixty".