2421320340 has 48 divisors (see below), whose sum is σ = 6786061632. Its totient is φ = 645079296.

The previous prime is 2421320333. The next prime is 2421320351. The reversal of 2421320340 is 430231242.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47427 + ... + 84213.

It is an arithmetic number, because the mean of its divisors is an integer number (141376284).

Almost surely, 2^2421320340 is an apocalyptic number.

2421320340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2421320340 is an abundant number, since it is smaller than the sum of its proper divisors (4364741292).

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

2421320340 is a wasteful number, since it uses less digits than its factorization.

2421320340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37896 (or 37894 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2421320340 is about 49206.9135386482. The cubic root of 2421320340 is about 1342.8188118896.

Adding to 2421320340 its reverse (430231242), we get a palindrome (2851551582).

The spelling of 2421320340 in words is "two billion, four hundred twenty-one million, three hundred twenty thousand, three hundred forty".