745131444 has 12 divisors (see below), whose sum is σ = 1738640064. Its totient is φ = 248377144.

The previous prime is 745131433. The next prime is 745131451. The reversal of 745131444 is 444131547.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31047132 + ... + 31047155.

It is an arithmetic number, because the mean of its divisors is an integer number (144886672).

Almost surely, 2^745131444 is an apocalyptic number.

It is an amenable number.

745131444 is an abundant number, since it is smaller than the sum of its proper divisors (993508620).

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

745131444 is a wasteful number, since it uses less digits than its factorization.

745131444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62094294 (or 62094292 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 745131444 is about 27297.0958894898. The cubic root of 745131444 is about 906.5900818986.

It can be divided in two parts, 74513 and 1444, that added together give a palindrome (75957).

The spelling of 745131444 in words is "seven hundred forty-five million, one hundred thirty-one thousand, four hundred forty-four".