40820448220 has 24 divisors (see below), whose sum is σ = 85728684384. Its totient is φ = 16327085376.

The previous prime is 40820448199. The next prime is 40820448223. The reversal of 40820448220 is 2284402804.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40820448223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281217 + ... + 400903.

It is an arithmetic number, because the mean of its divisors is an integer number (3572028516).

Almost surely, 2^40820448220 is an apocalyptic number.

It is an amenable number.

40820448220 is an abundant number, since it is smaller than the sum of its proper divisors (44908236164).

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

40820448220 is a wasteful number, since it uses less digits than its factorization.

40820448220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136749 (or 136747 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 34.

The spelling of 40820448220 in words is "forty billion, eight hundred twenty million, four hundred forty-eight thousand, two hundred twenty".