2440424420 has 60 divisors (see below), whose sum is σ = 5978801724. Its totient is φ = 836700480.

The previous prime is 2440424359. The next prime is 2440424431. The reversal of 2440424420 is 244240442.

It can be written as a sum of positive squares in 2 ways, for example, as 1825681984 + 614742436 = 42728^2 + 24794^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2440424420.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22610 + ... + 73430.

Almost surely, 2^2440424420 is an apocalyptic number.

2440424420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2440424420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2989400862).

2440424420 is an abundant number, since it is smaller than the sum of its proper divisors (3538377304).

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

2440424420 is an equidigital number, since it uses as much as digits as its factorization.

2440424420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50858 (or 50835 counting only the distinct ones).

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

The square root of 2440424420 is about 49400.6520199886. The cubic root of 2440424420 is about 1346.3411524392.

Adding to 2440424420 its reverse (244240442), we get a palindrome (2684664862).

The spelling of 2440424420 in words is "two billion, four hundred forty million, four hundred twenty-four thousand, four hundred twenty".