2421420240 has 40 divisors (see below), whose sum is σ = 7506403488. Its totient is φ = 645712000.

The previous prime is 2421420233. The next prime is 2421420311. The reversal of 2421420240 is 420241242.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5044386 + ... + 5044865.

Almost surely, 2^2421420240 is an apocalyptic number.

2421420240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2421420240 is an abundant number, since it is smaller than the sum of its proper divisors (5084983248).

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

2421420240 is a wasteful number, since it uses less digits than its factorization.

2421420240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10089267 (or 10089261 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 2421420240 is about 49207.9286294394. The cubic root of 2421420240 is about 1342.8372791905.

Adding to 2421420240 its reverse (420241242), we get a palindrome (2841661482).

The spelling of 2421420240 in words is "two billion, four hundred twenty-one million, four hundred twenty thousand, two hundred forty".