33612236442 has 80 divisors (see below), whose sum is σ = 76334892480. Its totient is φ = 11053132992.

The previous prime is 33612236429. The next prime is 33612236453. The reversal of 33612236442 is 24463221633.

33612236442 is a `hidden beast` number, since 3 + 3 + 6 + 1 + 2 + 2 + 3 + 644 + 2 = 666.

It is a super-2 number, since 2×33612236442² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33612236397 and 33612236406.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7019173 + ... + 7023959.

It is an arithmetic number, because the mean of its divisors is an integer number (954186156).

Almost surely, 2^33612236442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33612236442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38167446240).

33612236442 is an abundant number, since it is smaller than the sum of its proper divisors (42722656038).

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

33612236442 is a wasteful number, since it uses less digits than its factorization.

33612236442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5377 (or 5368 counting only the distinct ones).

The product of its digits is 124416, while the sum is 36.

The spelling of 33612236442 in words is "thirty-three billion, six hundred twelve million, two hundred thirty-six thousand, four hundred forty-two".