40011004020 has 48 divisors (see below), whose sum is σ = 120648568320. Its totient is φ = 9848862336.

The previous prime is 40011004013. The next prime is 40011004037. The reversal of 40011004020 is 2040011004.

40011004020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 40011003987 and 40011004005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25647300 + ... + 25648859.

It is an arithmetic number, because the mean of its divisors is an integer number (2513511840).

Almost surely, 2^40011004020 is an apocalyptic number.

It is an amenable number.

40011004020 is an abundant number, since it is smaller than the sum of its proper divisors (80637564300).

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

40011004020 is a wasteful number, since it uses less digits than its factorization.

40011004020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51296184 (or 51296182 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 40011004020 its reverse (2040011004), we get a palindrome (42051015024).

The spelling of 40011004020 in words is "forty billion, eleven million, four thousand, twenty".