2421968 has 40 divisors (see below), whose sum is σ = 5118720. Its totient is φ = 1105920.

The previous prime is 2421959. The next prime is 2421971. The reversal of 2421968 is 8691242.

It is a zygodrome in base 5.

It is a congruent number.

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, 9296 + ... + 9552.

It is an arithmetic number, because the mean of its divisors is an integer number (127968).

2^2421968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2421968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2559360).

2421968 is an abundant number, since it is smaller than the sum of its proper divisors (2696752).

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

2421968 is a wasteful number, since it uses less digits than its factorization.

2421968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 309 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 2421968 is about 1556.2673292208. The cubic root of 2421968 is about 134.2938527909.

The spelling of 2421968 in words is "two million, four hundred twenty-one thousand, nine hundred sixty-eight".