3621024 has 120 divisors (see below), whose sum is σ = 11708928. Its totient is φ = 1088640.

The previous prime is 3621011. The next prime is 3621031. The reversal of 3621024 is 4201263.

It is a happy number.

It is a super-2 number, since 2×3621024² = 26223629617152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3620988 and 3621006.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28449 + ... + 28575.

Almost surely, 2^3621024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3621024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5854464).

3621024 is an abundant number, since it is smaller than the sum of its proper divisors (8087904).

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

3621024 is a wasteful number, since it uses less digits than its factorization.

3621024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3621024 is about 1902.8988412420. The cubic root of 3621024 is about 153.5596573738.

Adding to 3621024 its reverse (4201263), we get a palindrome (7822287).

The spelling of 3621024 in words is "three million, six hundred twenty-one thousand, twenty-four".