40838233 has 4 divisors (see below), whose sum is σ = 43240500. Its totient is φ = 38435968.

The previous prime is 40838227. The next prime is 40838243. The reversal of 40838233 is 33283804.

40838233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34727449 + 6110784 = 5893^2 + 2472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40838233 is a prime.

It is a super-2 number, since 2×40838233² = 3335522549124578, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40838195 and 40838204.

It is not an unprimeable number, because it can be changed into a prime (40838243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1201108 + ... + 1201141.

It is an arithmetic number, because the mean of its divisors is an integer number (10810125).

Almost surely, 2^40838233 is an apocalyptic number.

It is an amenable number.

40838233 is a deficient number, since it is larger than the sum of its proper divisors (2402267).

40838233 is a wasteful number, since it uses less digits than its factorization.

40838233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402266.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 40838233 is about 6390.4798724352. The cubic root of 40838233 is about 344.3676240484.

The spelling of 40838233 in words is "forty million, eight hundred thirty-eight thousand, two hundred thirty-three".