745120 has 24 divisors (see below), whose sum is σ = 1760724. Its totient is φ = 297984.

The previous prime is 745117. The next prime is 745133. The reversal of 745120 is 21547.

745120 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 685584 + 59536 = 828^2 + 244^2 .

It is a plaindrome in base 14.

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, 2169 + ... + 2488.

2⁷⁴⁵¹²⁰ is an apocalyptic number.

It is an amenable number.

745120 is an abundant number, since it is smaller than the sum of its proper divisors (1015604).

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

745120 is a wasteful number, since it uses less digits than its factorization.

745120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4672 (or 4664 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 745120 is about 863.2033364162. The cubic root of 745120 is about 90.6585440628.

Adding to 745120 its reverse (21547), we get a palindrome (766667).

The spelling of 745120 in words is "seven hundred forty-five thousand, one hundred twenty".