33123996 has 72 divisors (see below), whose sum is σ = 87919104. Its totient is φ = 10501920.

The previous prime is 33123983. The next prime is 33124001. The reversal of 33123996 is 69932133.

It is a happy number.

33123996 is a `hidden beast` number, since 331 + 239 + 96 = 666.

It is a super-2 number, since 2×33123996² = 2194398222016032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 33123996.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74551 + ... + 74993.

Almost surely, 2^33123996 is an apocalyptic number.

33123996 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33123996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43959552).

33123996 is an abundant number, since it is smaller than the sum of its proper divisors (54795108).

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

33123996 is a wasteful number, since it uses less digits than its factorization.

33123996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 546 counting only the distinct ones).

The product of its digits is 26244, while the sum is 36.

The square root of 33123996 is about 5755.3449940034. The cubic root of 33123996 is about 321.1546696905.

The spelling of 33123996 in words is "thirty-three million, one hundred twenty-three thousand, nine hundred ninety-six".