734243664 has 80 divisors (see below), whose sum is σ = 2364848640. Its totient is φ = 190711680.

The previous prime is 734243599. The next prime is 734243669. The reversal of 734243664 is 466342437.

734243664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×734243664² = 1078227516248289792, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (734243669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95634 + ... + 103025.

It is an arithmetic number, because the mean of its divisors is an integer number (29560608).

Almost surely, 2^734243664 is an apocalyptic number.

It is an amenable number.

734243664 is an abundant number, since it is smaller than the sum of its proper divisors (1630604976).

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

734243664 is a wasteful number, since it uses less digits than its factorization.

734243664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198688 (or 198682 counting only the distinct ones).

The product of its digits is 290304, while the sum is 39.

The square root of 734243664 is about 27096.9308963211. The cubic root of 734243664 is about 902.1527331365.

The spelling of 734243664 in words is "seven hundred thirty-four million, two hundred forty-three thousand, six hundred sixty-four".