2196278 has 24 divisors (see below), whose sum is σ = 3897432. Its totient is φ = 925344.

The previous prime is 2196239. The next prime is 2196287. The reversal of 2196278 is 8726912.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7001 + ... + 7307.

It is an arithmetic number, because the mean of its divisors is an integer number (162393).

2^2196278 is an apocalyptic number.

2196278 is a deficient number, since it is larger than the sum of its proper divisors (1701154).

2196278 is a wasteful number, since it uses less digits than its factorization.

2196278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396 (or 389 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 2196278 is about 1481.9844803506. The cubic root of 2196278 is about 129.9857578086.

The spelling of 2196278 in words is "two million, one hundred ninety-six thousand, two hundred seventy-eight".