40042011020 has 24 divisors (see below), whose sum is σ = 91732607568. Its totient is φ = 14560731200.

The previous prime is 40042011001. The next prime is 40042011041. The reversal of 40042011020 is 2011024004.

It is a junction number, because it is equal to n+sod(n) for n = 40042010986 and 40042011004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91004351 + ... + 91004790.

It is an arithmetic number, because the mean of its divisors is an integer number (3822191982).

Almost surely, 2^40042011020 is an apocalyptic number.

It is an amenable number.

40042011020 is an abundant number, since it is smaller than the sum of its proper divisors (51690596548).

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

40042011020 is a wasteful number, since it uses less digits than its factorization.

40042011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182009161 (or 182009159 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 40042011020 its reverse (2011024004), we get a palindrome (42053035024).

The spelling of 40042011020 in words is "forty billion, forty-two million, eleven thousand, twenty".