33400443043 has 4 divisors (see below), whose sum is σ = 36436846968. Its totient is φ = 30364039120.

The previous prime is 33400443019. The next prime is 33400443127. The reversal of 33400443043 is 34034400433.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33400443043 is a prime.

It is a super-2 number, since 2×33400443043² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33400443343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1518201946 + ... + 1518201967.

It is an arithmetic number, because the mean of its divisors is an integer number (9109211742).

Almost surely, 2^33400443043 is an apocalyptic number.

33400443043 is a deficient number, since it is larger than the sum of its proper divisors (3036403925).

33400443043 is a wasteful number, since it uses less digits than its factorization.

33400443043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036403924.

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 33400443043 its reverse (34034400433), we get a palindrome (67434843476).

The spelling of 33400443043 in words is "thirty-three billion, four hundred million, four hundred forty-three thousand, forty-three".