74245422 has 8 divisors (see below), whose sum is σ = 148490856. Its totient is φ = 24748472.

The previous prime is 74245411. The next prime is 74245427. The reversal of 74245422 is 22454247.

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

74245422 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 74245422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74245427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6187113 + ... + 6187124.

It is an arithmetic number, because the mean of its divisors is an integer number (18561357).

Almost surely, 2^74245422 is an apocalyptic number.

74245422 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.

74245422 is a wasteful number, since it uses less digits than its factorization.

74245422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12374242.

The product of its digits is 17920, while the sum is 30.

The square root of 74245422 is about 8616.5783232093. The cubic root of 74245422 is about 420.2972612147.

Adding to 74245422 its reverse (22454247), we get a palindrome (96699669).

It can be divided in two parts, 742 and 45422, that added together give a palindrome (46164).

The spelling of 74245422 in words is "seventy-four million, two hundred forty-five thousand, four hundred twenty-two".