33209404044 has 24 divisors (see below), whose sum is σ = 77521551408. Its totient is φ = 11065095360.

The previous prime is 33209404021. The next prime is 33209404079. The reversal of 33209404044 is 44040490233.

It is a happy number.

It is a super-2 number, since 2×33209404044² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33209403996 and 33209404014.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558787 + ... + 615354.

It is an arithmetic number, because the mean of its divisors is an integer number (3230064642).

Almost surely, 2^33209404044 is an apocalyptic number.

It is an amenable number.

33209404044 is an abundant number, since it is smaller than the sum of its proper divisors (44312147364).

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

33209404044 is a wasteful number, since it uses less digits than its factorization.

33209404044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176505 (or 1176503 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 33209404044 its reverse (44040490233), we get a palindrome (77249894277).

The spelling of 33209404044 in words is "thirty-three billion, two hundred nine million, four hundred four thousand, forty-four".