2418921 has 12 divisors (see below), whose sum is σ = 3507972. Its totient is φ = 1606176.

The previous prime is 2418907. The next prime is 2418943. The reversal of 2418921 is 1298142.

2418921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2143296 + 275625 = 1464^2 + 525^2 .

It is not a de Polignac number, because 2418921 - 2¹⁰ = 2417897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2418421) 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 11 ways as a sum of consecutive naturals, for example, 3235 + ... + 3911.

It is an arithmetic number, because the mean of its divisors is an integer number (292331).

2^2418921 is an apocalyptic number.

It is an amenable number.

2418921 is a deficient number, since it is larger than the sum of its proper divisors (1089051).

2418921 is a wasteful number, since it uses less digits than its factorization.

2418921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080 (or 1077 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 2418921 is about 1555.2880762097. The cubic root of 2418921 is about 134.2375122327.

The spelling of 2418921 in words is "two million, four hundred eighteen thousand, nine hundred twenty-one".