33031422402 has 96 divisors (see below), whose sum is σ = 76314106176. Its totient is φ = 9512173440.

The previous prime is 33031422379. The next prime is 33031422407. The reversal of 33031422402 is 20422413033.

It is not an unprimeable number, because it can be changed into a prime (33031422407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1140768 + ... + 1169364.

It is an arithmetic number, because the mean of its divisors is an integer number (794938606).

Almost surely, 2^33031422402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33031422402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38157053088).

33031422402 is an abundant number, since it is smaller than the sum of its proper divisors (43282683774).

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

33031422402 is a wasteful number, since it uses less digits than its factorization.

33031422402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28704 (or 28693 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 33031422402 its reverse (20422413033), we get a palindrome (53453835435).

The spelling of 33031422402 in words is "thirty-three billion, thirty-one million, four hundred twenty-two thousand, four hundred two".