33423231 has 8 divisors (see below), whose sum is σ = 45405360. Its totient is φ = 21861632.

The previous prime is 33423227. The next prime is 33423263. The reversal of 33423231 is 13232433.

33423231 is nontrivially palindromic in base 2.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33423231 - 2² = 33423227 is a prime.

It is a super-2 number, since 2×33423231² = 2234224740958722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33423198 and 33423207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33423431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104946 + ... + 105263.

It is an arithmetic number, because the mean of its divisors is an integer number (5675670).

Almost surely, 2^33423231 is an apocalyptic number.

33423231 is a deficient number, since it is larger than the sum of its proper divisors (11982129).

33423231 is a wasteful number, since it uses less digits than its factorization.

33423231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210265.

The product of its digits is 1296, while the sum is 21.

The square root of 33423231 is about 5781.2828161231. The cubic root of 33423231 is about 322.1188526441.

Adding to 33423231 its reverse (13232433), we get a palindrome (46655664).

The spelling of 33423231 in words is "thirty-three million, four hundred twenty-three thousand, two hundred thirty-one".