33332802640 has 40 divisors (see below), whose sum is σ = 78223073760. Its totient is φ = 13208509056.

The previous prime is 33332802611. The next prime is 33332802641. The reversal of 33332802640 is 4620823333.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×33332802640² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33332802596 and 33332802605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33332802641) 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, 1938450 + ... + 1955569.

It is an arithmetic number, because the mean of its divisors is an integer number (1955576844).

Almost surely, 2^33332802640 is an apocalyptic number.

It is an amenable number.

33332802640 is an abundant number, since it is smaller than the sum of its proper divisors (44890271120).

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

33332802640 is a wasteful number, since it uses less digits than its factorization.

33332802640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3894139 (or 3894133 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 34.

The spelling of 33332802640 in words is "thirty-three billion, three hundred thirty-two million, eight hundred two thousand, six hundred forty".