745812252 has 24 divisors (see below), whose sum is σ = 1933587600. Its totient is φ = 248604048.

The previous prime is 745812247. The next prime is 745812259. The reversal of 745812252 is 252218547.

It is a happy number.

745812252 is a `hidden beast` number, since 7 + 4 + 581 + 22 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745812259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3452727 + ... + 3452942.

It is an arithmetic number, because the mean of its divisors is an integer number (80566150).

Almost surely, 2^745812252 is an apocalyptic number.

It is an amenable number.

745812252 is an abundant number, since it is smaller than the sum of its proper divisors (1187775348).

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

745812252 is a wasteful number, since it uses less digits than its factorization.

745812252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6905682 (or 6905674 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 745812252 is about 27309.5633798858. The cubic root of 745812252 is about 906.8661074255.

The spelling of 745812252 in words is "seven hundred forty-five million, eight hundred twelve thousand, two hundred fifty-two".