74233231 has 4 divisors (see below), whose sum is σ = 75633912. Its totient is φ = 72832552.

The previous prime is 74233223. The next prime is 74233241. The reversal of 74233231 is 13233247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13233247 = 167 ⋅79241.

It is a cyclic number.

It is not a de Polignac number, because 74233231 - 2³ = 74233223 is a prime.

It is a super-2 number, since 2×74233231² = 11021145169398722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74233196 and 74233205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74233241) 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, 700261 + ... + 700366.

It is an arithmetic number, because the mean of its divisors is an integer number (18908478).

Almost surely, 2^74233231 is an apocalyptic number.

74233231 is a deficient number, since it is larger than the sum of its proper divisors (1400681).

74233231 is a wasteful number, since it uses less digits than its factorization.

74233231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400680.

The product of its digits is 3024, while the sum is 25.

The square root of 74233231 is about 8615.8708787911. The cubic root of 74233231 is about 420.2742558709.

Adding to 74233231 its reverse (13233247), we get a palindrome (87466478).

The spelling of 74233231 in words is "seventy-four million, two hundred thirty-three thousand, two hundred thirty-one".