40820122 has 16 divisors (see below), whose sum is σ = 70701120. Its totient is φ = 17313408.

The previous prime is 40820119. The next prime is 40820141. The reversal of 40820122 is 22102804.

It is a self number, because there is not a number n which added to its sum of digits gives 40820122.

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, 13672 + ... + 16387.

It is an arithmetic number, because the mean of its divisors is an integer number (4418820).

Almost surely, 2^40820122 is an apocalyptic number.

40820122 is a deficient number, since it is larger than the sum of its proper divisors (29880998).

40820122 is a wasteful number, since it uses less digits than its factorization.

40820122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30165.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 40820122 is about 6389.0626855588. The cubic root of 40820122 is about 344.3167096333.

Adding to 40820122 its reverse (22102804), we get a palindrome (62922926).

The spelling of 40820122 in words is "forty million, eight hundred twenty thousand, one hundred twenty-two".