33423124240 has 40 divisors (see below), whose sum is σ = 84773199168. Its totient is φ = 12153863040.

The previous prime is 33423124223. The next prime is 33423124247. The reversal of 33423124240 is 4242132433.

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

It is a super-2 number, since 2×33423124240² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33423124199 and 33423124208.

It is not an unprimeable number, because it can be changed into a prime (33423124247) 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, 18989532 + ... + 18991291.

Almost surely, 2^33423124240 is an apocalyptic number.

It is an amenable number.

33423124240 is an abundant number, since it is smaller than the sum of its proper divisors (51350074928).

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

33423124240 is a wasteful number, since it uses less digits than its factorization.

33423124240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37980847 (or 37980841 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 33423124240 its reverse (4242132433), we get a palindrome (37665256673).

The spelling of 33423124240 in words is "thirty-three billion, four hundred twenty-three million, one hundred twenty-four thousand, two hundred forty".