74444442 has 8 divisors (see below), whose sum is σ = 148888896. Its totient is φ = 24814812.

The previous prime is 74444441. The next prime is 74444449. The reversal of 74444442 is 24444447.

It is a sphenic number, since it is the product of 3 distinct primes.

74444442 is an admirable number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (74444441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6203698 + ... + 6203709.

It is an arithmetic number, because the mean of its divisors is an integer number (18611112).

Almost surely, 2^74444442 is an apocalyptic number.

74444442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

74444442 is a wasteful number, since it uses less digits than its factorization.

74444442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12407412.

The product of its digits is 57344, while the sum is 33.

The square root of 74444442 is about 8628.1192620408. The cubic root of 74444442 is about 420.6724714690.

Adding to 74444442 its reverse (24444447), we get a palindrome (98888889).

The spelling of 74444442 in words is "seventy-four million, four hundred forty-four thousand, four hundred forty-two".