74042449 has 12 divisors (see below), whose sum is σ = 84399600. Its totient is φ = 64746864.

The previous prime is 74042413. The next prime is 74042453. The reversal of 74042449 is 94424047.

It is not a de Polignac number, because 74042449 - 2⁷ = 74042321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74042489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8319 + ... + 14740.

It is an arithmetic number, because the mean of its divisors is an integer number (7033300).

Almost surely, 2^74042449 is an apocalyptic number.

It is an amenable number.

74042449 is a deficient number, since it is larger than the sum of its proper divisors (10357151).

74042449 is a wasteful number, since it uses less digits than its factorization.

74042449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23104 (or 23091 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 74042449 is about 8604.7922113204. The cubic root of 74042449 is about 419.9139071458.

The spelling of 74042449 in words is "seventy-four million, forty-two thousand, four hundred forty-nine".