744219644 has 36 divisors (see below), whose sum is σ = 1517412960. Its totient is φ = 318447360.

The previous prime is 744219643. The next prime is 744219647. The reversal of 744219644 is 446912447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744219643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138284 + ... + 143564.

It is an arithmetic number, because the mean of its divisors is an integer number (42150360).

Almost surely, 2^744219644 is an apocalyptic number.

It is an amenable number.

744219644 is an abundant number, since it is smaller than the sum of its proper divisors (773193316).

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

744219644 is a wasteful number, since it uses less digits than its factorization.

744219644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6018 (or 6009 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 744219644 is about 27280.3893667228. The cubic root of 744219644 is about 906.2201399024.

The spelling of 744219644 in words is "seven hundred forty-four million, two hundred nineteen thousand, six hundred forty-four".