749642880 has 384 divisors, whose sum is σ = 2915959680. Its totient is φ = 160432128.

The previous prime is 749642867. The next prime is 749642909. The reversal of 749642880 is 88246947.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3884064 + ... + 3884256.

It is an arithmetic number, because the mean of its divisors is an integer number (7593645).

Almost surely, 2^749642880 is an apocalyptic number.

749642880 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749642880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1457979840).

749642880 is an abundant number, since it is smaller than the sum of its proper divisors (2166316800).

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

749642880 is a wasteful number, since it uses less digits than its factorization.

749642880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 749642880 is about 27379.6070095975. The cubic root of 749642880 is about 908.4160668313.

The spelling of 749642880 in words is "seven hundred forty-nine million, six hundred forty-two thousand, eight hundred eighty".