33440244146 has 4 divisors (see below), whose sum is σ = 50160366222. Its totient is φ = 16720122072.

The previous prime is 33440244139. The next prime is 33440244163. The reversal of 33440244146 is 64144204433.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64144204433 = 101 ⋅635091133.

It can be written as a sum of positive squares in only one way, i.e., 33430099921 + 10144225 = 182839^2 + 3185^2 .

It is a super-2 number, since 2×33440244146² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8360061035 + ... + 8360061038.

Almost surely, 2^33440244146 is an apocalyptic number.

33440244146 is a deficient number, since it is larger than the sum of its proper divisors (16720122076).

33440244146 is a wasteful number, since it uses less digits than its factorization.

33440244146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16720122075.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 33440244146 its reverse (64144204433), we get a palindrome (97584448579).

The spelling of 33440244146 in words is "thirty-three billion, four hundred forty million, two hundred forty-four thousand, one hundred forty-six".