745393248 has 72 divisors (see below), whose sum is σ = 2123398368. Its totient is φ = 248032512.

The previous prime is 745393247. The next prime is 745393267. The reversal of 745393248 is 842393547.

745393248 is a `hidden beast` number, since 74 + 539 + 3 + 2 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×745393248² = 1111222188327979008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745393241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193065 + ... + 196887.

It is an arithmetic number, because the mean of its divisors is an integer number (29491644).

Almost surely, 2^745393248 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 745393248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1061699184).

745393248 is an abundant number, since it is smaller than the sum of its proper divisors (1378005120).

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

745393248 is a wasteful number, since it uses less digits than its factorization.

745393248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4516 (or 4505 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 745393248 is about 27301.8909235240. The cubic root of 745393248 is about 906.6962471126.

The spelling of 745393248 in words is "seven hundred forty-five million, three hundred ninety-three thousand, two hundred forty-eight".