745140 has 48 divisors (see below), whose sum is σ = 2278080. Its totient is φ = 180480.

The previous prime is 745133. The next prime is 745141. The reversal of 745140 is 41547.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745141) by changing a digit.

745140 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96 + ... + 1224.

It is an arithmetic number, because the mean of its divisors is an integer number (47460).

2⁷⁴⁵¹⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 745140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1139040).

745140 is an abundant number, since it is smaller than the sum of its proper divisors (1532940).

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

745140 is a wasteful number, since it uses less digits than its factorization.

745140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 745140 is about 863.2149210944. The cubic root of 745140 is about 90.6593551870.

Adding to 745140 its reverse (41547), we get a palindrome (786687).

The spelling of 745140 in words is "seven hundred forty-five thousand, one hundred forty".