2401203400040 has 32 divisors (see below), whose sum is σ = 5403389921280. Its totient is φ = 960360067392.

The previous prime is 2401203400027. The next prime is 2401203400049. The reversal of 2401203400040 is 400043021042.

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 = 2401203399985 and 2401203400021.

It is not an unprimeable number, because it can be changed into a prime (2401203400049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3469352 + ... + 4103511.

It is an arithmetic number, because the mean of its divisors is an integer number (168855935040).

Almost surely, 2^{2401203400040} is an apocalyptic number.

2401203400040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2401203400040 is an abundant number, since it is smaller than the sum of its proper divisors (3002186521240).

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

2401203400040 is a wasteful number, since it uses less digits than its factorization.

2401203400040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7580801 (or 7580797 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 2401203400040 its reverse (400043021042), we get a palindrome (2801246421082).

The spelling of 2401203400040 in words is "two trillion, four hundred one billion, two hundred three million, four hundred thousand, forty".