744421266 has 112 divisors (see below), whose sum is σ = 1775381760. Its totient is φ = 233513280.

The previous prime is 744421261. The next prime is 744421267. The reversal of 744421266 is 662124447.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 744421266.

It is not an unprimeable number, because it can be changed into a prime (744421261) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 2649046 + ... + 2649326.

Almost surely, 2^744421266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 744421266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (887690880).

744421266 is an abundant number, since it is smaller than the sum of its proper divisors (1030960494).

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

744421266 is a wasteful number, since it uses less digits than its factorization.

744421266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 388 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 744421266 is about 27284.0844816168. The cubic root of 744421266 is about 906.3019694272.

The spelling of 744421266 in words is "seven hundred forty-four million, four hundred twenty-one thousand, two hundred sixty-six".