2196478 has 8 divisors (see below), whose sum is σ = 3318840. Its totient is φ = 1090200.

The previous prime is 2196473. The next prime is 2196487. The reversal of 2196478 is 8746912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3673 + ... + 4228.

It is an arithmetic number, because the mean of its divisors is an integer number (414855).

2^2196478 is an apocalyptic number.

2196478 is a deficient number, since it is larger than the sum of its proper divisors (1122362).

2196478 is a wasteful number, since it uses less digits than its factorization.

2196478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8042.

The product of its digits is 24192, while the sum is 37.

The square root of 2196478 is about 1482.0519559044. The cubic root of 2196478 is about 129.9897033265.

The spelling of 2196478 in words is "two million, one hundred ninety-six thousand, four hundred seventy-eight".