2040342520400 has 60 divisors (see below), whose sum is σ = 4902062472252. Its totient is φ = 816113771520.

The previous prime is 2040342520319. The next prime is 2040342520421. The reversal of 2040342520400 is 40252430402.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 17416608784 + 2022925911616 = 131972^2 + 1422296^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2040342520400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23755934 + ... + 23841666.

Almost surely, 2^{2040342520400} is an apocalyptic number.

2040342520400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040342520400 is an abundant number, since it is smaller than the sum of its proper divisors (2861719951852).

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

2040342520400 is a wasteful number, since it uses less digits than its factorization.

2040342520400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145248 (or 145237 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

Adding to 2040342520400 its reverse (40252430402), we get a palindrome (2080594950802).

The spelling of 2040342520400 in words is "two trillion, forty billion, three hundred forty-two million, five hundred twenty thousand, four hundred".