2163628 has 6 divisors (see below), whose sum is σ = 3786356. Its totient is φ = 1081812.

The previous prime is 2163613. The next prime is 2163653. The reversal of 2163628 is 8263612.

It is a super-2 number, since 2×2163628² = 9362572244768, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2 + 1 + 6 + 3⁹ + 6⁶ + 2⁷ + 8⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 2163596 and 2163605.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270450 + ... + 270457.

2^2163628 is an apocalyptic number.

It is an amenable number.

2163628 is a deficient number, since it is larger than the sum of its proper divisors (1622728).

2163628 is a wasteful number, since it uses less digits than its factorization.

2163628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540911 (or 540909 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 2163628 is about 1470.9275984902. The cubic root of 2163628 is about 129.3384139665.

It can be divided in two parts, 216 and 3628, that added together give a square (3844 = 62²).

The spelling of 2163628 in words is "two million, one hundred sixty-three thousand, six hundred twenty-eight".