42400008822020 has 24 divisors (see below), whose sum is σ = 89040496824384. Its totient is φ = 16959912424416.

The previous prime is 42400008821971. The next prime is 42400008822071. The reversal of 42400008822020 is 2022880000424.

It is a happy number.

It is a super-3 number, since 3×42400008822020³ (a number of 42 digits) contains 333 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 1813232 + ... + 9385511.

It is an arithmetic number, because the mean of its divisors is an integer number (3710020701016).

Almost surely, 2^{42400008822020} is an apocalyptic number.

It is an amenable number.

42400008822020 is an abundant number, since it is smaller than the sum of its proper divisors (46640488002364).

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

42400008822020 is a wasteful number, since it uses less digits than its factorization.

42400008822020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11388059 (or 11388057 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

Adding to 42400008822020 its reverse (2022880000424), we get a palindrome (44422888822444).

The spelling of 42400008822020 in words is "forty-two trillion, four hundred billion, eight million, eight hundred twenty-two thousand, twenty".