40022043 has 4 divisors (see below), whose sum is σ = 53362728. Its totient is φ = 26681360.

The previous prime is 40022041. The next prime is 40022053. The reversal of 40022043 is 34022004.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40022043 - 2¹ = 40022041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40022041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6670338 + ... + 6670343.

It is an arithmetic number, because the mean of its divisors is an integer number (13340682).

Almost surely, 2^40022043 is an apocalyptic number.

40022043 is a deficient number, since it is larger than the sum of its proper divisors (13340685).

40022043 is a wasteful number, since it uses less digits than its factorization.

40022043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13340684.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 40022043 is about 6326.2977324815. The cubic root of 40022043 is about 342.0579994654.

Adding to 40022043 its reverse (34022004), we get a palindrome (74044047).

The spelling of 40022043 in words is "forty million, twenty-two thousand, forty-three".