33011245040 has 40 divisors (see below), whose sum is σ = 78199289568. Its totient is φ = 12955354880.

The previous prime is 33011245021. The next prime is 33011245051. The reversal of 33011245040 is 4054211033.

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

It is a junction number, because it is equal to n+sod(n) for n = 33011244997 and 33011245015.

It is a congruent number.

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, 3888596 + ... + 3897075.

Almost surely, 2^33011245040 is an apocalyptic number.

It is an amenable number.

33011245040 is an abundant number, since it is smaller than the sum of its proper divisors (45188044528).

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

33011245040 is a wasteful number, since it uses less digits than its factorization.

33011245040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7785737 (or 7785731 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 33011245040 its reverse (4054211033), we get a palindrome (37065456073).

The spelling of 33011245040 in words is "thirty-three billion, eleven million, two hundred forty-five thousand, forty".