3621424 has 20 divisors (see below), whose sum is σ = 7082136. Its totient is φ = 1793792.

The previous prime is 3621403. The next prime is 3621461. The reversal of 3621424 is 4241263.

It is a happy number.

It is a super-2 number, since 2×3621424² = 26229423575552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3621395 and 3621404.

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, 807 + ... + 2809.

Almost surely, 2^3621424 is an apocalyptic number.

It is an amenable number.

3621424 is a deficient number, since it is larger than the sum of its proper divisors (3460712).

3621424 is a wasteful number, since it uses less digits than its factorization.

3621424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124 (or 2118 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 3621424 is about 1903.0039411415. The cubic root of 3621424 is about 153.5653115388.

Adding to 3621424 its reverse (4241263), we get a palindrome (7862687).

The spelling of 3621424 in words is "three million, six hundred twenty-one thousand, four hundred twenty-four".