2978192 has 20 divisors (see below), whose sum is σ = 6594816. Its totient is φ = 1276320.

The previous prime is 2978189. The next prime is 2978197. The reversal of 2978192 is 2918792.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2978197) 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, 13184 + ... + 13407.

2^2978192 is an apocalyptic number.

It is an amenable number.

2978192 is an abundant number, since it is smaller than the sum of its proper divisors (3616624).

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

2978192 is a wasteful number, since it uses less digits than its factorization.

2978192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26606 (or 26600 counting only the distinct ones).

The product of its digits is 18144, while the sum is 38.

The square root of 2978192 is about 1725.7438975700. The cubic root of 2978192 is about 143.8746336862.

The spelling of 2978192 in words is "two million, nine hundred seventy-eight thousand, one hundred ninety-two".