2196628 has 24 divisors (see below), whose sum is σ = 4625600. Its totient is φ = 891648.

The previous prime is 2196619. The next prime is 2196641. The reversal of 2196628 is 8266912.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2196593 and 2196602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1533 + ... + 2596.

2^2196628 is an apocalyptic number.

2196628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2196628 is an abundant number, since it is smaller than the sum of its proper divisors (2428972).

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

2196628 is a wasteful number, since it uses less digits than its factorization.

2196628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4159 (or 4157 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 2196628 is about 1482.1025605538. The cubic root of 2196628 is about 129.9926623077.

The spelling of 2196628 in words is "two million, one hundred ninety-six thousand, six hundred twenty-eight".