745390 has 16 divisors (see below), whose sum is σ = 1354320. Its totient is φ = 295360.

The previous prime is 745379. The next prime is 745391. The reversal of 745390 is 93547.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1026 + ... + 1594.

It is an arithmetic number, because the mean of its divisors is an integer number (84645).

2⁷⁴⁵³⁹⁰ is an apocalyptic number.

745390 is a deficient number, since it is larger than the sum of its proper divisors (608930).

745390 is a wasteful number, since it uses less digits than its factorization.

745390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 745390 is about 863.3597164566. The cubic root of 745390 is about 90.6694930155.

The spelling of 745390 in words is "seven hundred forty-five thousand, three hundred ninety".