745852491 has 12 divisors (see below), whose sum is σ = 1077932232. Its totient is φ = 496962816.

The previous prime is 745852489. The next prime is 745852511. The reversal of 745852491 is 194258547.

745852491 is a `hidden beast` number, since 74 + 58 + 524 + 9 + 1 = 666.

It is not a de Polignac number, because 745852491 - 2¹ = 745852489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (745852451) 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, 4566 + ... + 38891.

It is an arithmetic number, because the mean of its divisors is an integer number (89827686).

Almost surely, 2^745852491 is an apocalyptic number.

745852491 is a deficient number, since it is larger than the sum of its proper divisors (332079741).

745852491 is a wasteful number, since it uses less digits than its factorization.

745852491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45370 (or 45367 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 745852491 is about 27310.3000898928. The cubic root of 745852491 is about 906.8824165922.

The spelling of 745852491 in words is "seven hundred forty-five million, eight hundred fifty-two thousand, four hundred ninety-one".