74409238 has 32 divisors (see below), whose sum is σ = 122923008. Its totient is φ = 33628800.

The previous prime is 74409229. The next prime is 74409239. The reversal of 74409238 is 83290447.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 74409197 and 74409206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74409239) 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, 239103 + ... + 239413.

It is an arithmetic number, because the mean of its divisors is an integer number (3841344).

Almost surely, 2^74409238 is an apocalyptic number.

74409238 is a deficient number, since it is larger than the sum of its proper divisors (48513770).

74409238 is a wasteful number, since it uses less digits than its factorization.

74409238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 74409238 is about 8626.0789470072. The cubic root of 74409238 is about 420.6061504726.

It can be divided in two parts, 74409 and 238, that added together give a palindrome (74647).

The spelling of 74409238 in words is "seventy-four million, four hundred nine thousand, two hundred thirty-eight".