2421836 has 12 divisors (see below), whose sum is σ = 4249728. Its totient is φ = 1207632.

The previous prime is 2421823. The next prime is 2421841. The reversal of 2421836 is 6381242.

It is a super-2 number, since 2×2421836² = 11730579221792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1685 + ... + 2771.

It is an arithmetic number, because the mean of its divisors is an integer number (354144).

2^2421836 is an apocalyptic number.

It is an amenable number.

2421836 is a deficient number, since it is larger than the sum of its proper divisors (1827892).

2421836 is a wasteful number, since it uses less digits than its factorization.

2421836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648 (or 1646 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 2421836 is about 1556.2249194766. The cubic root of 2421836 is about 134.2914130242.

The spelling of 2421836 in words is "two million, four hundred twenty-one thousand, eight hundred thirty-six".