745650 has 36 divisors (see below), whose sum is σ = 2004522. Its totient is φ = 198720.

The previous prime is 745649. The next prime is 745673. The reversal of 745650 is 56547.

745650 = 153² + 154² + ... + 179².

745650 is a `hidden beast` number, since 7 + 4 + 5 + 650 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 488601 + 257049 = 699^2 + 507^2 .

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 17 ways as a sum of consecutive naturals, for example, 379 + ... + 1278.

2⁷⁴⁵⁶⁵⁰ is an apocalyptic number.

745650 is an abundant number, since it is smaller than the sum of its proper divisors (1258872).

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

745650 is a wasteful number, since it uses less digits than its factorization.

745650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675 (or 1667 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 745650 is about 863.5102778775. The cubic root of 745650 is about 90.6800339528.

The spelling of 745650 in words is "seven hundred forty-five thousand, six hundred fifty".