40227442 has 4 divisors (see below), whose sum is σ = 60341166. Its totient is φ = 20113720.

The previous prime is 40227419. The next prime is 40227443. The reversal of 40227442 is 24472204.

It is a happy number.

40227442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 40182921 + 44521 = 6339^2 + 211^2 .

It is not an unprimeable number, because it can be changed into a prime (40227443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056859 + ... + 10056862.

Almost surely, 2^40227442 is an apocalyptic number.

40227442 is a deficient number, since it is larger than the sum of its proper divisors (20113724).

40227442 is a wasteful number, since it uses less digits than its factorization.

40227442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20113723.

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 40227442 is about 6342.5107016071. The cubic root of 40227442 is about 342.6421652168.

Adding to 40227442 its reverse (24472204), we get a palindrome (64699646).

The spelling of 40227442 in words is "forty million, two hundred twenty-seven thousand, four hundred forty-two".