745863481 has 24 divisors (see below), whose sum is σ = 866053440. Its totient is φ = 640564320.

The previous prime is 745863467. The next prime is 745863553. The reversal of 745863481 is 184368547.

It is a happy number.

It is not a de Polignac number, because 745863481 - 2²⁷ = 611645753 is a prime.

It is a super-2 number, since 2×745863481² = 1112624664578874722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745863451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 229375 + ... + 232603.

It is an arithmetic number, because the mean of its divisors is an integer number (36085560).

Almost surely, 2^745863481 is an apocalyptic number.

It is an amenable number.

745863481 is a deficient number, since it is larger than the sum of its proper divisors (120189959).

745863481 is a wasteful number, since it uses less digits than its factorization.

745863481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357 (or 3346 counting only the distinct ones).

The product of its digits is 645120, while the sum is 46.

The square root of 745863481 is about 27310.5012952893. The cubic root of 745863481 is about 906.8868708192.

The spelling of 745863481 in words is "seven hundred forty-five million, eight hundred sixty-three thousand, four hundred eighty-one".