33890019328 has 96 divisors (see below), whose sum is σ = 75030490080. Its totient is φ = 15173959680.

The previous prime is 33890019301. The next prime is 33890019329. The reversal of 33890019328 is 82391009833.

It is a super-2 number, since 2×33890019328² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33890019329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1498150 + ... + 1520602.

It is an arithmetic number, because the mean of its divisors is an integer number (781567605).

Almost surely, 2^33890019328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33890019328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37515245040).

33890019328 is an abundant number, since it is smaller than the sum of its proper divisors (41140470752).

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

33890019328 is a wasteful number, since it uses less digits than its factorization.

33890019328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22553 (or 22533 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 33890019328 in words is "thirty-three billion, eight hundred ninety million, nineteen thousand, three hundred twenty-eight".