40220620844 has 6 divisors (see below), whose sum is σ = 70386086484. Its totient is φ = 20110310420.

The previous prime is 40220620829. The next prime is 40220620879. The reversal of 40220620844 is 44802602204.

It is a self number, because there is not a number n which added to its sum of digits gives 40220620844.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5027577602 + ... + 5027577609.

It is an arithmetic number, because the mean of its divisors is an integer number (11731014414).

Almost surely, 2^40220620844 is an apocalyptic number.

It is an amenable number.

40220620844 is a deficient number, since it is larger than the sum of its proper divisors (30165465640).

40220620844 is a wasteful number, since it uses less digits than its factorization.

40220620844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10055155215 (or 10055155213 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The spelling of 40220620844 in words is "forty billion, two hundred twenty million, six hundred twenty thousand, eight hundred forty-four".