749988 has 36 divisors (see below), whose sum is σ = 1926288. Its totient is φ = 246000.

The previous prime is 749971. The next prime is 749993. The reversal of 749988 is 889947.

749988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 749988.

It is an unprimeable number.

749988 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2863 + ... + 3113.

It is an arithmetic number, because the mean of its divisors is an integer number (53508).

2⁷⁴⁹⁹⁸⁸ 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 749988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (963144).

749988 is an abundant number, since it is smaller than the sum of its proper divisors (1176300).

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

749988 is a wasteful number, since it uses less digits than its factorization.

749988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 339 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 749988 is about 866.0184755535. The cubic root of 749988 is about 90.8555450735.

The spelling of 749988 in words is "seven hundred forty-nine thousand, nine hundred eighty-eight".