745945344 has 81 divisors (see below), whose sum is σ = 2154530833. Its totient is φ = 248211456.

The previous prime is 745945313. The next prime is 745945357. The reversal of 745945344 is 443549547.

The square root of 745945344 is 27312.

It is a perfect power (a square), and thus also a powerful number.

745945344 is a `hidden beast` number, since 7 + 4 + 594 + 53 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 122943744 + 623001600 = 11088^2 + 24960^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 745945344.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1310692 + ... + 1311260.

Almost surely, 2^745945344 is an apocalyptic number.

745945344 is the 27312-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 745945344

745945344 is an abundant number, since it is smaller than the sum of its proper divisors (1408585489).

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

745945344 is an frugal number, since it uses more digits than its factorization.

745945344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160 (or 574 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 45.

The cubic root of 745945344 is about 906.9200483670.

The spelling of 745945344 in words is "seven hundred forty-five million, nine hundred forty-five thousand, three hundred forty-four".