33423009 has 4 divisors (see below), whose sum is σ = 44564016. Its totient is φ = 22282004.

The previous prime is 33423007. The next prime is 33423011. The reversal of 33423009 is 90032433.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (33423007) and next prime (33423011).

It is a cyclic number.

It is not a de Polignac number, because 33423009 - 2¹ = 33423007 is a prime.

It is a super-2 number, since 2×33423009² = 2234195061228162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33423009.

It is not an unprimeable number, because it can be changed into a prime (33423001) 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, 5570499 + ... + 5570504.

It is an arithmetic number, because the mean of its divisors is an integer number (11141004).

Almost surely, 2^33423009 is an apocalyptic number.

It is an amenable number.

33423009 is a deficient number, since it is larger than the sum of its proper divisors (11141007).

33423009 is a wasteful number, since it uses less digits than its factorization.

33423009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11141006.

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 33423009 is about 5781.2636162002. The cubic root of 33423009 is about 322.1181394621.

The spelling of 33423009 in words is "thirty-three million, four hundred twenty-three thousand, nine".