745887520 has 96 divisors (see below), whose sum is σ = 2019257856. Its totient is φ = 255052800.

The previous prime is 745887491. The next prime is 745887533. The reversal of 745887520 is 25788547.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 605305 + ... + 606535.

It is an arithmetic number, because the mean of its divisors is an integer number (21033936).

Almost surely, 2^745887520 is an apocalyptic number.

745887520 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 745887520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1009628928).

745887520 is an abundant number, since it is smaller than the sum of its proper divisors (1273370336).

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

745887520 is a wasteful number, since it uses less digits than its factorization.

745887520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794 (or 1786 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 46.

The square root of 745887520 is about 27310.9413971763. The cubic root of 745887520 is about 906.8966136295.

The spelling of 745887520 in words is "seven hundred forty-five million, eight hundred eighty-seven thousand, five hundred twenty".