749036880 has 240 divisors, whose sum is σ = 2669781504. Its totient is φ = 187868160.

The previous prime is 749036861. The next prime is 749036891. The reversal of 749036880 is 88630947.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×749036880² = 1122112495200268800, which contains 22 as substring.

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

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 825387 + ... + 826293.

Almost surely, 2^749036880 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 749036880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1334890752).

749036880 is an abundant number, since it is smaller than the sum of its proper divisors (1920744624).

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

749036880 is a wasteful number, since it uses less digits than its factorization.

749036880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994 (or 985 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 749036880 is about 27368.5381414499. The cubic root of 749036880 is about 908.1712175586.

The spelling of 749036880 in words is "seven hundred forty-nine million, thirty-six thousand, eight hundred eighty".