2431440420 has 48 divisors (see below), whose sum is σ = 6816384960. Its totient is φ = 647588736.

The previous prime is 2431440413. The next prime is 2431440421. The reversal of 2431440420 is 240441342.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2431440421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25299 + ... + 74181.

It is an arithmetic number, because the mean of its divisors is an integer number (142008020).

Almost surely, 2^2431440420 is an apocalyptic number.

2431440420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2431440420 is an abundant number, since it is smaller than the sum of its proper divisors (4384944540).

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

2431440420 is a wasteful number, since it uses less digits than its factorization.

2431440420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49724 (or 49722 counting only the distinct ones).

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

The square root of 2431440420 is about 49309.6382059329. The cubic root of 2431440420 is about 1344.6870136787.

Adding to 2431440420 its reverse (240441342), we get a palindrome (2671881762).

The spelling of 2431440420 in words is "two billion, four hundred thirty-one million, four hundred forty thousand, four hundred twenty".