40204030311020 has 48 divisors (see below), whose sum is σ = 85324584945600. Its totient is φ = 15911343302400.

The previous prime is 40204030311017. The next prime is 40204030311119. The reversal of 40204030311020 is 2011303040204.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 40204030310983 and 40204030311001.

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, 11626040 + ... + 14682399.

It is an arithmetic number, because the mean of its divisors is an integer number (1777595519700).

Almost surely, 2^{40204030311020} is an apocalyptic number.

It is an amenable number.

40204030311020 is an abundant number, since it is smaller than the sum of its proper divisors (45120554634580).

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

40204030311020 is a wasteful number, since it uses less digits than its factorization.

40204030311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26309258 (or 26309256 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 40204030311020 its reverse (2011303040204), we get a palindrome (42215333351224).

The spelling of 40204030311020 in words is "forty trillion, two hundred four billion, thirty million, three hundred eleven thousand, twenty".