744428232 has 80 divisors (see below), whose sum is σ = 2207773260. Its totient is φ = 233542656.

The previous prime is 744428221. The next prime is 744428239. The reversal of 744428232 is 232824447.

It can be written as a sum of positive squares in 2 ways, for example, as 735819876 + 8608356 = 27126^2 + 2934^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (744428239) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22773 + ... + 44804.

Almost surely, 2^744428232 is an apocalyptic number.

744428232 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

744428232 is an abundant number, since it is smaller than the sum of its proper divisors (1463345028).

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

744428232 is a wasteful number, since it uses less digits than its factorization.

744428232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67612 (or 67599 counting only the distinct ones).

The product of its digits is 86016, while the sum is 36.

The square root of 744428232 is about 27284.2121381578. The cubic root of 744428232 is about 906.3047963569.

The spelling of 744428232 in words is "seven hundred forty-four million, four hundred twenty-eight thousand, two hundred thirty-two".