749941920 has 576 divisors, whose sum is σ = 3236163840. Its totient is φ = 153944064.

The previous prime is 749941919. The next prime is 749941931. The reversal of 749941920 is 29149947.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7731312 + ... + 7731408.

It is an arithmetic number, because the mean of its divisors is an integer number (5618340).

Almost surely, 2^749941920 is an apocalyptic number.

749941920 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 749941920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1618081920).

749941920 is an abundant number, since it is smaller than the sum of its proper divisors (2486221920).

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

749941920 is a wasteful number, since it uses less digits than its factorization.

749941920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 749941920 is about 27385.0674638570. The cubic root of 749941920 is about 908.5368428409.

The spelling of 749941920 in words is "seven hundred forty-nine million, nine hundred forty-one thousand, nine hundred twenty".