745090 has 8 divisors (see below), whose sum is σ = 1341180. Its totient is φ = 298032.

The previous prime is 745067. The next prime is 745103. The reversal of 745090 is 90547.

745090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 700569 + 44521 = 837^2 + 211^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37245 + ... + 37264.

2⁷⁴⁵⁰⁹⁰ is an apocalyptic number.

745090 is a deficient number, since it is larger than the sum of its proper divisors (596090).

745090 is a wasteful number, since it uses less digits than its factorization.

745090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74516.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 745090 is about 863.1859591073. The cubic root of 745090 is about 90.6573273492.

The spelling of 745090 in words is "seven hundred forty-five thousand, ninety".