40222093 has 4 divisors (see below), whose sum is σ = 40292380. Its totient is φ = 40151808.

The previous prime is 40222073. The next prime is 40222111. The reversal of 40222093 is 39022204.

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 20268004 + 19954089 = 4502^2 + 4467^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40222093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40222003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34278 + ... + 35431.

It is an arithmetic number, because the mean of its divisors is an integer number (10073095).

Almost surely, 2^40222093 is an apocalyptic number.

It is an amenable number.

40222093 is a deficient number, since it is larger than the sum of its proper divisors (70287).

40222093 is an equidigital number, since it uses as much as digits as its factorization.

40222093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70286.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 40222093 is about 6342.0890091515. The cubic root of 40222093 is about 342.6269776227.

Adding to 40222093 its reverse (39022204), we get a palindrome (79244297).

The spelling of 40222093 in words is "forty million, two hundred twenty-two thousand, ninety-three".