40220442625 has 32 divisors (see below), whose sum is σ = 54798052608. Its totient is φ = 29230000000.

The previous prime is 40220442617. The next prime is 40220442629. The reversal of 40220442625 is 52624402204.

It is not a de Polignac number, because 40220442625 - 2³ = 40220442617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40220442629) 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 31 ways as a sum of consecutive naturals, for example, 2026500 + ... + 2046250.

It is an arithmetic number, because the mean of its divisors is an integer number (1712439144).

Almost surely, 2^40220442625 is an apocalyptic number.

It is an amenable number.

40220442625 is a deficient number, since it is larger than the sum of its proper divisors (14577609983).

40220442625 is a wasteful number, since it uses less digits than its factorization.

40220442625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21258 (or 21248 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 40220442625 its reverse (52624402204), we get a palindrome (92844844829).

The spelling of 40220442625 in words is "forty billion, two hundred twenty million, four hundred forty-two thousand, six hundred twenty-five".