745344939 has 16 divisors (see below), whose sum is σ = 1048464000. Its totient is φ = 469679616.

The previous prime is 745344911. The next prime is 745344961. The reversal of 745344939 is 939443547.

It is a happy number.

It is not a de Polignac number, because 745344939 - 2¹³ = 745336747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (745344139) 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 15 ways as a sum of consecutive naturals, for example, 11032 + ... + 40154.

It is an arithmetic number, because the mean of its divisors is an integer number (65529000).

Almost surely, 2^745344939 is an apocalyptic number.

745344939 is a deficient number, since it is larger than the sum of its proper divisors (303119061).

745344939 is a wasteful number, since it uses less digits than its factorization.

745344939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29594.

The product of its digits is 1632960, while the sum is 48.

The square root of 745344939 is about 27301.0061902487. The cubic root of 745344939 is about 906.6766590024.

The spelling of 745344939 in words is "seven hundred forty-five million, three hundred forty-four thousand, nine hundred thirty-nine".