40220844 has 24 divisors (see below), whose sum is σ = 99369648. Its totient is φ = 12618240.

The previous prime is 40220839. The next prime is 40220863. The reversal of 40220844 is 44802204.

40220844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 13.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 98377 + ... + 98784.

It is an arithmetic number, because the mean of its divisors is an integer number (4140402).

Almost surely, 2^40220844 is an apocalyptic number.

It is an amenable number.

40220844 is an abundant number, since it is smaller than the sum of its proper divisors (59148804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40220844 is a wasteful number, since it uses less digits than its factorization.

40220844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197185 (or 197183 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 40220844 is about 6341.9905392550. The cubic root of 40220844 is about 342.6234311014.

The spelling of 40220844 in words is "forty million, two hundred twenty thousand, eight hundred forty-four".