40142822 has 8 divisors (see below), whose sum is σ = 61614696. Its totient is φ = 19604592.

The previous prime is 40142821. The next prime is 40142857. The reversal of 40142822 is 22824104.

It is a happy number.

40142822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40142822² = 3222892316247368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40142821) 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 in 3 ways as a sum of consecutive naturals, for example, 233303 + ... + 233474.

It is an arithmetic number, because the mean of its divisors is an integer number (7701837).

Almost surely, 2^40142822 is an apocalyptic number.

40142822 is a deficient number, since it is larger than the sum of its proper divisors (21471874).

40142822 is a wasteful number, since it uses less digits than its factorization.

40142822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466822.

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 40142822 is about 6335.8363299568. The cubic root of 40142822 is about 342.4017428198.

Adding to 40142822 its reverse (22824104), we get a palindrome (62966926).

The spelling of 40142822 in words is "forty million, one hundred forty-two thousand, eight hundred twenty-two".