40221422 has 16 divisors (see below), whose sum is σ = 64002960. Its totient is φ = 18891648.

The previous prime is 40221409. The next prime is 40221431. The reversal of 40221422 is 22412204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 40221422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27473 + ... + 28899.

It is an arithmetic number, because the mean of its divisors is an integer number (4000185).

Almost surely, 2^40221422 is an apocalyptic number.

40221422 is a deficient number, since it is larger than the sum of its proper divisors (23781538).

40221422 is a wasteful number, since it uses less digits than its factorization.

40221422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 40221422 is about 6342.0361083803. The cubic root of 40221422 is about 342.6250723349.

Adding to 40221422 its reverse (22412204), we get a palindrome (62633626).

The spelling of 40221422 in words is "forty million, two hundred twenty-one thousand, four hundred twenty-two".