33243861 has 16 divisors (see below), whose sum is σ = 50738688. Its totient is φ = 18966000.

The previous prime is 33243851. The next prime is 33243869. The reversal of 33243861 is 16834233.

It is not a de Polignac number, because 33243861 - 2⁷ = 33243733 is a prime.

It is a super-2 number, since 2×33243861² = 2210308588374642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33243869) 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, 22186 + ... + 23636.

It is an arithmetic number, because the mean of its divisors is an integer number (3171168).

Almost surely, 2^33243861 is an apocalyptic number.

It is an amenable number.

33243861 is a deficient number, since it is larger than the sum of its proper divisors (17494827).

33243861 is a wasteful number, since it uses less digits than its factorization.

33243861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552.

The product of its digits is 10368, while the sum is 30.

The square root of 33243861 is about 5765.7489539521. The cubic root of 33243861 is about 321.5415882225.

The spelling of 33243861 in words is "thirty-three million, two hundred forty-three thousand, eight hundred sixty-one".