745400 has 24 divisors (see below), whose sum is σ = 1733520. Its totient is φ = 298080.

The previous prime is 745397. The next prime is 745471. The reversal of 745400 is 4547.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1664 + ... + 2063.

It is an arithmetic number, because the mean of its divisors is an integer number (72230).

2⁷⁴⁵⁴⁰⁰ is an apocalyptic number.

It is an amenable number.

745400 is an abundant number, since it is smaller than the sum of its proper divisors (988120).

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

745400 is a wasteful number, since it uses less digits than its factorization.

745400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3743 (or 3734 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 745400 is about 863.3655077660. The cubic root of 745400 is about 90.6698984815.

Adding to 745400 its reverse (4547), we get a palindrome (749947).

The spelling of 745400 in words is "seven hundred forty-five thousand, four hundred".