749331 has 30 divisors (see below), whose sum is σ = 1264692. Its totient is φ = 438480.

The previous prime is 749323. The next prime is 749339. The reversal of 749331 is 133947.

It is an interprime number because it is at equal distance from previous prime (749323) and next prime (749339).

It is not a de Polignac number, because 749331 - 2³ = 749323 is a prime.

It is a super-2 number, since 2×749331² = 1122993895122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (2268) is a multiple of the sum of its prime factors (81).

It is a junction number, because it is equal to n+sod(n) for n = 749295 and 749304.

It is not an unprimeable number, because it can be changed into a prime (749339) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 25825 + ... + 25853.

2⁷⁴⁹³³¹ is an apocalyptic number.

749331 is a deficient number, since it is larger than the sum of its proper divisors (515361).

749331 is a wasteful number, since it uses less digits than its factorization.

749331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 43 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 749331 is about 865.6390702828. The cubic root of 749331 is about 90.8290070792.

The spelling of 749331 in words is "seven hundred forty-nine thousand, three hundred thirty-one".