744221352 has 64 divisors (see below), whose sum is σ = 2133290880. Its totient is φ = 211940352.

The previous prime is 744221351. The next prime is 744221353. The reversal of 744221352 is 253122447.

It is an interprime number because it is at equal distance from previous prime (744221351) and next prime (744221353).

It is not an unprimeable number, because it can be changed into a prime (744221351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45508 + ... + 59660.

It is an arithmetic number, because the mean of its divisors is an integer number (33332670).

Almost surely, 2^744221352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 744221352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1066645440).

744221352 is an abundant number, since it is smaller than the sum of its proper divisors (1389069528).

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

744221352 is a wasteful number, since it uses less digits than its factorization.

744221352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14482 (or 14478 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 744221352 is about 27280.4206712433. The cubic root of 744221352 is about 906.2208331667.

Adding to 744221352 its reverse (253122447), we get a palindrome (997343799).

The spelling of 744221352 in words is "seven hundred forty-four million, two hundred twenty-one thousand, three hundred fifty-two".