2421331 has 6 divisors (see below), whose sum is σ = 2661596. Its totient is φ = 2201100.

The previous prime is 2421329. The next prime is 2421343. The reversal of 2421331 is 1331242.

2421331 = T₆₅₈ + T₆₅₉ + ... + T₆₆₈.

It is a happy number.

2421331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2421331 - 2¹ = 2421329 is a prime.

It is a super-2 number, since 2×2421331² = 11725687623122, which contains 22 as substring.

It is a Duffinian number.

2421331 is a modest number, since divided by 1331 gives 242 as remainder.

It is not an unprimeable number, because it can be changed into a prime (2421311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9885 + ... + 10126.

2^2421331 is an apocalyptic number.

2421331 is a deficient number, since it is larger than the sum of its proper divisors (240265).

2421331 is a wasteful number, since it uses less digits than its factorization.

2421331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20033 (or 20022 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 2421331 is about 1556.0626594067. The cubic root of 2421331 is about 134.2820782499.

Adding to 2421331 its reverse (1331242), we get a palindrome (3752573).

The spelling of 2421331 in words is "two million, four hundred twenty-one thousand, three hundred thirty-one".