74228219 has 4 divisors (see below), whose sum is σ = 79938096. Its totient is φ = 68518344.

The previous prime is 74228207. The next prime is 74228243. The reversal of 74228219 is 91282247.

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

It is a cyclic number.

It is not a de Polignac number, because 74228219 - 2⁸ = 74227963 is a prime.

It is a super-2 number, since 2×74228219² = 11019656991823922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74228279) 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, 2854919 + ... + 2854944.

It is an arithmetic number, because the mean of its divisors is an integer number (19984524).

Almost surely, 2^74228219 is an apocalyptic number.

74228219 is a deficient number, since it is larger than the sum of its proper divisors (5709877).

74228219 is a wasteful number, since it uses less digits than its factorization.

74228219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5709876.

The product of its digits is 16128, while the sum is 35.

The square root of 74228219 is about 8615.5800152979. The cubic root of 74228219 is about 420.2647971152.

It can be divided in two parts, 74228 and 219, that added together give a palindrome (74447).

The spelling of 74228219 in words is "seventy-four million, two hundred twenty-eight thousand, two hundred nineteen".