33000420032 has 56 divisors (see below), whose sum is σ = 66420443232. Its totient is φ = 16265984000.

The previous prime is 33000420007. The next prime is 33000420041. The reversal of 33000420032 is 23002400033.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1495157 + ... + 1517067.

Almost surely, 2^33000420032 is an apocalyptic number.

33000420032 is a gapful number since it is divisible by the number (32) 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 33000420032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33210221616).

33000420032 is an abundant number, since it is smaller than the sum of its proper divisors (33420023200).

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

33000420032 is a wasteful number, since it uses less digits than its factorization.

33000420032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22257 (or 22247 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 17.

Adding to 33000420032 its reverse (23002400033), we get a palindrome (56002820065).

The spelling of 33000420032 in words is "thirty-three billion, four hundred twenty thousand, thirty-two".