40222442 has 48 divisors (see below), whose sum is σ = 71020152. Its totient is φ = 16972800.

The previous prime is 40222439. The next prime is 40222453. The reversal of 40222442 is 24422204.

It can be written as a sum of positive squares in 12 ways, for example, as 24690961 + 15531481 = 4969^2 + 3941^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 398192 + ... + 398292.

Almost surely, 2^40222442 is an apocalyptic number.

40222442 is a deficient number, since it is larger than the sum of its proper divisors (30797710).

40222442 is a wasteful number, since it uses less digits than its factorization.

40222442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 40222442 is about 6342.1165236851. The cubic root of 40222442 is about 342.6279685911.

Adding to 40222442 its reverse (24422204), we get a palindrome (64644646).

The spelling of 40222442 in words is "forty million, two hundred twenty-two thousand, four hundred forty-two".