2400420240440 has 32 divisors (see below), whose sum is σ = 5401073090160. Its totient is φ = 960145420800.

The previous prime is 2400420240437. The next prime is 2400420240511. The reversal of 2400420240440 is 440420240042.

It is a super-2 number, since 2×2400420240440² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1060880 + ... + 2434400.

Almost surely, 2^{2400420240440} is an apocalyptic number.

2400420240440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2400420240440 is an abundant number, since it is smaller than the sum of its proper divisors (3000652849720).

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

2400420240440 is a wasteful number, since it uses less digits than its factorization.

2400420240440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417223 (or 1417219 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 2400420240440 its reverse (440420240042), we get a palindrome (2840840480482).

The spelling of 2400420240440 in words is "two trillion, four hundred billion, four hundred twenty million, two hundred forty thousand, four hundred forty".