33198989424 has 80 divisors (see below), whose sum is σ = 87317744640. Its totient is φ = 10866286080.

The previous prime is 33198989413. The next prime is 33198989443. The reversal of 33198989424 is 42498989133.

It is a super-2 number, since 2×33198989424² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2647329 + ... + 2659839.

It is an arithmetic number, because the mean of its divisors is an integer number (1091471808).

Almost surely, 2^33198989424 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 33198989424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43658872320).

33198989424 is an abundant number, since it is smaller than the sum of its proper divisors (54118755216).

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

33198989424 is a wasteful number, since it uses less digits than its factorization.

33198989424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13518 (or 13512 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 60.

The spelling of 33198989424 in words is "thirty-three billion, one hundred ninety-eight million, nine hundred eighty-nine thousand, four hundred twenty-four".