33444440412 has 48 divisors (see below), whose sum is σ = 79905302400. Its totient is φ = 10881597888.

The previous prime is 33444440399. The next prime is 33444440437. The reversal of 33444440412 is 21404444433.

It is a super-2 number, since 2×33444440412² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 778363 + ... + 820205.

It is an arithmetic number, because the mean of its divisors is an integer number (1664693800).

Almost surely, 2^33444440412 is an apocalyptic number.

It is an amenable number.

33444440412 is an abundant number, since it is smaller than the sum of its proper divisors (46460861988).

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

33444440412 is a wasteful number, since it uses less digits than its factorization.

33444440412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43442 (or 43440 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 33444440412 its reverse (21404444433), we get a palindrome (54848884845).

The spelling of 33444440412 in words is "thirty-three billion, four hundred forty-four million, four hundred forty thousand, four hundred twelve".