33040443402 has 32 divisors (see below), whose sum is σ = 73501680000. Its totient is φ = 11001710304.

The previous prime is 33040443389. The next prime is 33040443407. The reversal of 33040443402 is 20434404033.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (33040443407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275902 + ... + 377097.

It is an arithmetic number, because the mean of its divisors is an integer number (2296927500).

Almost surely, 2^33040443402 is an apocalyptic number.

33040443402 is an abundant number, since it is smaller than the sum of its proper divisors (40461236598).

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

33040443402 is a wasteful number, since it uses less digits than its factorization.

33040443402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653947 (or 653941 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 33040443402 its reverse (20434404033), we get a palindrome (53474847435).

The spelling of 33040443402 in words is "thirty-three billion, forty million, four hundred forty-three thousand, four hundred two".