40222229 has 4 divisors (see below), whose sum is σ = 40304640. Its totient is φ = 40139820.

The previous prime is 40222223. The next prime is 40222249. The reversal of 40222229 is 92222204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40222229 - 2¹⁶ = 40156693 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 (40222223) 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, 40469 + ... + 41450.

It is an arithmetic number, because the mean of its divisors is an integer number (10076160).

Almost surely, 2^40222229 is an apocalyptic number.

It is an amenable number.

40222229 is a deficient number, since it is larger than the sum of its proper divisors (82411).

40222229 is an equidigital number, since it uses as much as digits as its factorization.

40222229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82410.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 40222229 is about 6342.0997311616. The cubic root of 40222229 is about 342.6273637887.

The spelling of 40222229 in words is "forty million, two hundred twenty-two thousand, two hundred twenty-nine".