744071172 has 72 divisors (see below), whose sum is σ = 1892108736. Its totient is φ = 227574048.

The previous prime is 744071171. The next prime is 744071173. The reversal of 744071172 is 271170447.

It is an interprime number because it is at equal distance from previous prime (744071171) and next prime (744071173).

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (744071171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4455433 + ... + 4455599.

It is an arithmetic number, because the mean of its divisors is an integer number (26279288).

Almost surely, 2^744071172 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 744071172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (946054368).

744071172 is an abundant number, since it is smaller than the sum of its proper divisors (1148037564).

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

744071172 is an equidigital number, since it uses as much as digits as its factorization.

744071172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 33.

The square root of 744071172 is about 27277.6680088310. The cubic root of 744071172 is about 906.1598721816.

The spelling of 744071172 in words is "seven hundred forty-four million, seventy-one thousand, one hundred seventy-two".