74454438 has 16 divisors (see below), whose sum is σ = 149022720. Its totient is φ = 24799176.

The previous prime is 74454437. The next prime is 74454449. The reversal of 74454438 is 83445447.

It is a junction number, because it is equal to n+sod(n) for n = 74454396 and 74454405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74454433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5443 + ... + 13361.

It is an arithmetic number, because the mean of its divisors is an integer number (9313920).

Almost surely, 2^74454438 is an apocalyptic number.

74454438 is an abundant number, since it is smaller than the sum of its proper divisors (74568282).

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

74454438 is a wasteful number, since it uses less digits than its factorization.

74454438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9491.

The product of its digits is 215040, while the sum is 39.

The square root of 74454438 is about 8628.6985113631. The cubic root of 74454438 is about 420.6912991733.

The spelling of 74454438 in words is "seventy-four million, four hundred fifty-four thousand, four hundred thirty-eight".