745384 has 16 divisors (see below), whose sum is σ = 1458720. Its totient is φ = 356400.

The previous prime is 745379. The next prime is 745391. The reversal of 745384 is 483547.

745384 = T₂₇ + T₂₈ + ... + T₁₆₄.

It is an unprimeable number.

745384 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 3 ways as a sum of consecutive naturals, for example, 1842 + ... + 2209.

It is an arithmetic number, because the mean of its divisors is an integer number (91170).

745384 is a Friedman number, since it can be written as 45^3*8+4^7, using all its digits and the basic arithmetic operations.

2⁷⁴⁵³⁸⁴ is an apocalyptic number.

It is an amenable number.

745384 is a deficient number, since it is larger than the sum of its proper divisors (713336).

745384 is a wasteful number, since it uses less digits than its factorization.

745384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4080 (or 4076 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 745384 is about 863.3562416523. The cubic root of 745384 is about 90.6692497342.

The spelling of 745384 in words is "seven hundred forty-five thousand, three hundred eighty-four".