749342688 has 48 divisors (see below), whose sum is σ = 1978058880. Its totient is φ = 248379776.

The previous prime is 749342651. The next prime is 749342701. The reversal of 749342688 is 886243947.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 749342688.

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, 4620 + ... + 38987.

It is an arithmetic number, because the mean of its divisors is an integer number (41209560).

Almost surely, 2^749342688 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 749342688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (989029440).

749342688 is an abundant number, since it is smaller than the sum of its proper divisors (1228716192).

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

749342688 is a wasteful number, since it uses less digits than its factorization.

749342688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43799 (or 43791 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 51.

The square root of 749342688 is about 27374.1244243537. The cubic root of 749342688 is about 908.2947932436.

The spelling of 749342688 in words is "seven hundred forty-nine million, three hundred forty-two thousand, six hundred eighty-eight".