745480 has 16 divisors (see below), whose sum is σ = 1677420. Its totient is φ = 298176.

The previous prime is 745477. The next prime is 745517. The reversal of 745480 is 84547.

It can be written as a sum of positive squares in 2 ways, for example, as 611524 + 133956 = 782^2 + 366^2 .

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, 9279 + ... + 9358.

2⁷⁴⁵⁴⁸⁰ is an apocalyptic number.

It is an amenable number.

745480 is an abundant number, since it is smaller than the sum of its proper divisors (931940).

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

745480 is a wasteful number, since it uses less digits than its factorization.

745480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18648 (or 18644 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 745480 is about 863.4118368427. The cubic root of 745480 is about 90.6731420788.

It can be divided in two parts, 745 and 480, that added together give a triangular number (1225 = T₄₉).

The spelling of 745480 in words is "seven hundred forty-five thousand, four hundred eighty".