33423642 has 96 divisors (see below), whose sum is σ = 87859200. Its totient is φ = 8981280.

The previous prime is 33423589. The next prime is 33423659. The reversal of 33423642 is 24632433.

It is a happy number.

It is a super-2 number, since 2×33423642² = 2234279689088328, which contains 22 as substring.

Its product of digits (10368) is a multiple of the sum of its prime factors (288).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 167859 + ... + 168057.

It is an arithmetic number, because the mean of its divisors is an integer number (915200).

Almost surely, 2^33423642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33423642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43929600).

33423642 is an abundant number, since it is smaller than the sum of its proper divisors (54435558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33423642 is a wasteful number, since it uses less digits than its factorization.

33423642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 285 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

The square root of 33423642 is about 5781.3183617580. The cubic root of 33423642 is about 322.1201729863.

The spelling of 33423642 in words is "thirty-three million, four hundred twenty-three thousand, six hundred forty-two".