749736 has 80 divisors (see below), whose sum is σ = 2286900. Its totient is φ = 228096.

The previous prime is 749729. The next prime is 749741. The reversal of 749736 is 637947.

It can be written as a sum of positive squares in 2 ways, for example, as 656100 + 93636 = 810^2 + 306^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

749736 is a Rhonda number in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 749736.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8380 + ... + 8468.

2⁷⁴⁹⁷³⁶ 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 749736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1143450).

749736 is an abundant number, since it is smaller than the sum of its proper divisors (1537164).

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

749736 is a wasteful number, since it uses less digits than its factorization.

749736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 107 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 749736 is about 865.8729698980. The cubic root of 749736 is about 90.8453679497.

Subtracting from 749736 its sum of digits (36), we obtain a triangular number (749700 = T₁₂₂₄).

It can be divided in two parts, 749 and 736, that added together give a triangular number (1485 = T₅₄).

The spelling of 749736 in words is "seven hundred forty-nine thousand, seven hundred thirty-six".