744231213 has 16 divisors (see below), whose sum is σ = 1202798400. Its totient is φ = 451049040.

The previous prime is 744231211. The next prime is 744231269. The reversal of 744231213 is 312132447.

It is a happy number.

744231213 is a `hidden beast` number, since 7 + 442 + 3 + 1 + 213 = 666.

It is not a de Polignac number, because 744231213 - 2¹ = 744231211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744231211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1252618 + ... + 1253211.

It is an arithmetic number, because the mean of its divisors is an integer number (75174900).

Almost surely, 2^744231213 is an apocalyptic number.

It is an amenable number.

744231213 is a deficient number, since it is larger than the sum of its proper divisors (458567187).

744231213 is a wasteful number, since it uses less digits than its factorization.

744231213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505849 (or 2505843 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 744231213 is about 27280.6014046612. The cubic root of 744231213 is about 906.2248356516.

The spelling of 744231213 in words is "seven hundred forty-four million, two hundred thirty-one thousand, two hundred thirteen".