749943120 has 80 divisors (see below), whose sum is σ = 2334975552. Its totient is φ = 199111680.

The previous prime is 749943107. The next prime is 749943137. The reversal of 749943120 is 21349947.

It is a tau number, because it is divible by the number of its divisors (80).

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, 49215 + ... + 62625.

Almost surely, 2^749943120 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 749943120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1167487776).

749943120 is an abundant number, since it is smaller than the sum of its proper divisors (1585032432).

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

749943120 is a wasteful number, since it uses less digits than its factorization.

749943120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13660 (or 13654 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 749943120 is about 27385.0893735989. The cubic root of 749943120 is about 908.5373274311.

The spelling of 749943120 in words is "seven hundred forty-nine million, nine hundred forty-three thousand, one hundred twenty".