744500005 has 4 divisors (see below), whose sum is σ = 893400012. Its totient is φ = 595600000.

The previous prime is 744499997. The next prime is 744500021. The reversal of 744500005 is 500005447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500005447 = 239 ⋅2092073.

It can be written as a sum of positive squares in 2 ways, for example, as 200024449 + 544475556 = 14143^2 + 23334^2 .

It is not a de Polignac number, because 744500005 - 2³ = 744499997 is a prime.

It is a Duffinian number.

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, 74449996 + ... + 74450005.

It is an arithmetic number, because the mean of its divisors is an integer number (223350003).

Almost surely, 2^744500005 is an apocalyptic number.

It is an amenable number.

744500005 is a deficient number, since it is larger than the sum of its proper divisors (148900007).

744500005 is a wasteful number, since it uses less digits than its factorization.

744500005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148900006.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 744500005 is about 27285.5273909082. The cubic root of 744500005 is about 906.3339221212. Note that the first 3 decimals are identical.

The spelling of 744500005 in words is "seven hundred forty-four million, five hundred thousand, five".