40042233 has 24 divisors (see below), whose sum is σ = 72111936. Its totient is φ = 20800800.

The previous prime is 40042231. The next prime is 40042273. The reversal of 40042233 is 33224004.

It is not a de Polignac number, because 40042233 - 2¹ = 40042231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40042231) 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 23 ways as a sum of consecutive naturals, for example, 28198 + ... + 29583.

It is an arithmetic number, because the mean of its divisors is an integer number (3004664).

Almost surely, 2^40042233 is an apocalyptic number.

It is an amenable number.

40042233 is a deficient number, since it is larger than the sum of its proper divisors (32069703).

40042233 is a wasteful number, since it uses less digits than its factorization.

40042233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57805 (or 57802 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 40042233 is about 6327.8932513120. The cubic root of 40042233 is about 342.1155093566.

Adding to 40042233 its reverse (33224004), we get a palindrome (73266237).

The spelling of 40042233 in words is "forty million, forty-two thousand, two hundred thirty-three".