2400400620620 has 96 divisors (see below), whose sum is σ = 5114847124800. Its totient is φ = 946166759424.

The previous prime is 2400400620593. The next prime is 2400400620623. The reversal of 2400400620620 is 260260040042.

It is a self number, because there is not a number n which added to its sum of digits gives 2400400620620.

It is not an unprimeable number, because it can be changed into a prime (2400400620623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 925722044 + ... + 925724636.

It is an arithmetic number, because the mean of its divisors is an integer number (53279657550).

Almost surely, 2^{2400400620620} is an apocalyptic number.

2400400620620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2400400620620 is an abundant number, since it is smaller than the sum of its proper divisors (2714446504180).

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

2400400620620 is a wasteful number, since it uses less digits than its factorization.

2400400620620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4827 (or 4825 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 2400400620620 its reverse (260260040042), we get a palindrome (2660660660662).

The spelling of 2400400620620 in words is "two trillion, four hundred billion, four hundred million, six hundred twenty thousand, six hundred twenty".