2421320 has 32 divisors (see below), whose sum is σ = 5944320. Its totient is φ = 880320.

The previous prime is 2421319. The next prime is 2421329. The reversal of 2421320 is 231242.

It is a junction number, because it is equal to n+sod(n) for n = 2421295 and 2421304.

It is not an unprimeable number, because it can be changed into a prime (2421329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2312 + ... + 3191.

It is an arithmetic number, because the mean of its divisors is an integer number (185760).

2^2421320 is an apocalyptic number.

2421320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2421320 is an abundant number, since it is smaller than the sum of its proper divisors (3523000).

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

2421320 is a wasteful number, since it uses less digits than its factorization.

2421320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5525 (or 5521 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2421320 is about 1556.0591248407. The cubic root of 2421320 is about 134.2818749037.

Adding to 2421320 its reverse (231242), we get a palindrome (2652562).

The spelling of 2421320 in words is "two million, four hundred twenty-one thousand, three hundred twenty".