744219642 has 32 divisors (see below), whose sum is σ = 1601843904. Its totient is φ = 229651200.

The previous prime is 744219631. The next prime is 744219643. The reversal of 744219642 is 246912447.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 744219642.

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 15 ways as a sum of consecutive naturals, for example, 53584 + ... + 66027.

It is an arithmetic number, because the mean of its divisors is an integer number (50057622).

Almost surely, 2^744219642 is an apocalyptic number.

744219642 is an abundant number, since it is smaller than the sum of its proper divisors (857624262).

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

744219642 is a wasteful number, since it uses less digits than its factorization.

744219642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119694.

The product of its digits is 96768, while the sum is 39.

The square root of 744219642 is about 27280.3893300664. The cubic root of 744219642 is about 906.2201390906.

The spelling of 744219642 in words is "seven hundred forty-four million, two hundred nineteen thousand, six hundred forty-two".