745404 has 24 divisors (see below), whose sum is σ = 1897728. Its totient is φ = 225840.

The previous prime is 745397. The next prime is 745471. The reversal of 745404 is 404547.

It is a congruent number.

It is an unprimeable number.

745404 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2692 + ... + 2955.

It is an arithmetic number, because the mean of its divisors is an integer number (79072).

2⁷⁴⁵⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

745404 is an abundant number, since it is smaller than the sum of its proper divisors (1152324).

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

745404 is a wasteful number, since it uses less digits than its factorization.

745404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5665 (or 5663 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 745404 is about 863.3678242789. The cubic root of 745404 is about 90.6700606669.

The spelling of 745404 in words is "seven hundred forty-five thousand, four hundred four".