2040220431240 has 64 divisors (see below), whose sum is σ = 6146270841600. Its totient is φ = 541782377472.

The previous prime is 2040220431217. The next prime is 2040220431283. The reversal of 2040220431240 is 421340220402.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2040220431240.

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, 35540017 + ... + 35597376.

It is an arithmetic number, because the mean of its divisors is an integer number (96035481900).

Almost surely, 2^{2040220431240} is an apocalyptic number.

2040220431240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040220431240 is an abundant number, since it is smaller than the sum of its proper divisors (4106050410360).

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

2040220431240 is a wasteful number, since it uses less digits than its factorization.

2040220431240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71137646 (or 71137642 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 2040220431240 its reverse (421340220402), we get a palindrome (2461560651642).

The spelling of 2040220431240 in words is "two trillion, forty billion, two hundred twenty million, four hundred thirty-one thousand, two hundred forty".