2400020240 has 40 divisors (see below), whose sum is σ = 5583779520. Its totient is φ = 959366016.

The previous prime is 2400020213. The next prime is 2400020257. The reversal of 2400020240 is 420200042.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

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, 120941 + ... + 139379.

It is an arithmetic number, because the mean of its divisors is an integer number (139594488).

Almost surely, 2^2400020240 is an apocalyptic number.

2400020240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2400020240 is an abundant number, since it is smaller than the sum of its proper divisors (3183759280).

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

2400020240 is a wasteful number, since it uses less digits than its factorization.

2400020240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20079 (or 20073 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 2400020240 is about 48990.0014288630. The cubic root of 2400020240 is about 1338.8696638546.

Adding to 2400020240 its reverse (420200042), we get a palindrome (2820220282).

The spelling of 2400020240 in words is "two billion, four hundred million, twenty thousand, two hundred forty".