74938229 has 4 divisors (see below), whose sum is σ = 74961420. Its totient is φ = 74915040.

The previous prime is 74938219. The next prime is 74938243. The reversal of 74938229 is 92283947.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27300625 + 47637604 = 5225^2 + 6902^2 .

It is a cyclic number.

It is not a de Polignac number, because 74938229 - 2²⁴ = 58161013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 74938229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74938219) 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, 5774 + ... + 13535.

It is an arithmetic number, because the mean of its divisors is an integer number (18740355).

Almost surely, 2^74938229 is an apocalyptic number.

It is an amenable number.

74938229 is a deficient number, since it is larger than the sum of its proper divisors (23191).

74938229 is a wasteful number, since it uses less digits than its factorization.

74938229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23190.

The product of its digits is 217728, while the sum is 44.

The square root of 74938229 is about 8656.6869528706. The cubic root of 74938229 is about 421.6005237863.

The spelling of 74938229 in words is "seventy-four million, nine hundred thirty-eight thousand, two hundred twenty-nine".