2421140 has 24 divisors (see below), whose sum is σ = 5384232. Its totient is φ = 911360.

The previous prime is 2421137. The next prime is 2421149. The reversal of 2421140 is 411242.

It can be written as a sum of positive squares in 4 ways, for example, as 55696 + 2365444 = 236^2 + 1538^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421149) 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, 3221 + ... + 3900.

It is an arithmetic number, because the mean of its divisors is an integer number (224343).

2^2421140 is an apocalyptic number.

2421140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2421140 is an abundant number, since it is smaller than the sum of its proper divisors (2963092).

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

2421140 is a wasteful number, since it uses less digits than its factorization.

2421140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7147 (or 7145 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2421140 is about 1556.0012853465. The cubic root of 2421140 is about 134.2785473336.

Adding to 2421140 its reverse (411242), we get a palindrome (2832382).

The spelling of 2421140 in words is "two million, four hundred twenty-one thousand, one hundred forty".