40000020420424 has 64 divisors (see below), whose sum is σ = 80175827496960. Its totient is φ = 18642951290880.

The previous prime is 40000020420413. The next prime is 40000020420431. The reversal of 40000020420424 is 42402402000004.

It is a junction number, because it is equal to n+sod(n) for n = 40000020420395 and 40000020420404.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7959109 + ... + 11972779.

It is an arithmetic number, because the mean of its divisors is an integer number (1252747304640).

Almost surely, 2^{40000020420424} is an apocalyptic number.

It is an amenable number.

40000020420424 is an abundant number, since it is smaller than the sum of its proper divisors (40175807076536).

40000020420424 is a wasteful number, since it uses less digits than its factorization.

40000020420424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4014398 (or 4014394 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 40000020420424 its reverse (42402402000004), we get a palindrome (82402422420428).

The spelling of 40000020420424 in words is "forty trillion, twenty million, four hundred twenty thousand, four hundred twenty-four".