749904 has 40 divisors (see below), whose sum is σ = 2053440. Its totient is φ = 235008.

The previous prime is 749899. The next prime is 749909. The reversal of 749904 is 409947.

It is an interprime number because it is at equal distance from previous prime (749899) and next prime (749909).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357 + ... + 1275.

It is an arithmetic number, because the mean of its divisors is an integer number (51336).

2⁷⁴⁹⁹⁰⁴ 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 749904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1026720).

749904 is an abundant number, since it is smaller than the sum of its proper divisors (1303536).

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

749904 is a wasteful number, since it uses less digits than its factorization.

749904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947 (or 941 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 749904 is about 865.9699763849. The cubic root of 749904 is about 90.8521529523.

It can be divided in two parts, 749 and 904, that added together give a triangular number (1653 = T₅₇).

The spelling of 749904 in words is "seven hundred forty-nine thousand, nine hundred four".