2421980 has 48 divisors (see below), whose sum is σ = 5654880. Its totient is φ = 864000.

The previous prime is 2421971. The next prime is 2421989. The reversal of 2421980 is 891242.

It is an interprime number because it is at equal distance from previous prime (2421971) and next prime (2421989).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22166 + ... + 22274.

It is an arithmetic number, because the mean of its divisors is an integer number (117810).

2^2421980 is an apocalyptic number.

2421980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2421980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2827440).

2421980 is an abundant number, since it is smaller than the sum of its proper divisors (3232900).

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

2421980 is a wasteful number, since it uses less digits than its factorization.

2421980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 2421980 is about 1556.2711845948. The cubic root of 2421980 is about 134.2940745835.

It can be divided in two parts, 242 and 1980, that added together give a palindrome (2222).

The spelling of 2421980 in words is "two million, four hundred twenty-one thousand, nine hundred eighty".