749040 has 40 divisors (see below), whose sum is σ = 2322768. Its totient is φ = 199680.

The previous prime is 749027. The next prime is 749051. The reversal of 749040 is 40947.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×749040² = 1122121843200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 749040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1321 + ... + 1800.

2⁷⁴⁹⁰⁴⁰ is an apocalyptic number.

It is an amenable number.

749040 is an abundant number, since it is smaller than the sum of its proper divisors (1573728).

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

749040 is a wasteful number, since it uses less digits than its factorization.

749040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137 (or 3131 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 749040 is about 865.4709700504. The cubic root of 749040 is about 90.8172478507.

Adding to 749040 its reverse (40947), we get a palindrome (789987).

The spelling of 749040 in words is "seven hundred forty-nine thousand, forty".