74442245 has 16 divisors (see below), whose sum is σ = 92053632. Its totient is φ = 57758400.

The previous prime is 74442241. The next prime is 74442259. The reversal of 74442245 is 54224447.

It is not a de Polignac number, because 74442245 - 2² = 74442241 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74442241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31319 + ... + 33611.

It is an arithmetic number, because the mean of its divisors is an integer number (5753352).

Almost surely, 2^74442245 is an apocalyptic number.

It is an amenable number.

74442245 is a deficient number, since it is larger than the sum of its proper divisors (17611387).

74442245 is a wasteful number, since it uses less digits than its factorization.

74442245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492.

The product of its digits is 35840, while the sum is 32.

The square root of 74442245 is about 8627.9919448270. The cubic root of 74442245 is about 420.6683331412.

The spelling of 74442245 in words is "seventy-four million, four hundred forty-two thousand, two hundred forty-five".