749240 has 16 divisors (see below), whose sum is σ = 1685880. Its totient is φ = 299680.

The previous prime is 749237. The next prime is 749249. The reversal of 749240 is 42947.

It is a super-2 number, since 2×749240² = 1122721155200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9326 + ... + 9405.

2⁷⁴⁹²⁴⁰ is an apocalyptic number.

It is an amenable number.

749240 is an abundant number, since it is smaller than the sum of its proper divisors (936640).

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

749240 is a wasteful number, since it uses less digits than its factorization.

749240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18742 (or 18738 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 749240 is about 865.5865063643. The cubic root of 749240 is about 90.8253301219.

It can be divided in two parts, 749 and 240, that added together give a palindrome (989).

The spelling of 749240 in words is "seven hundred forty-nine thousand, two hundred forty".