2238978 has 16 divisors (see below), whose sum is σ = 5117760. Its totient is φ = 639696.

The previous prime is 2238961. The next prime is 2238989. The reversal of 2238978 is 8798322.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26613 + ... + 26696.

It is an arithmetic number, because the mean of its divisors is an integer number (319860).

2^2238978 is an apocalyptic number.

2238978 is an abundant number, since it is smaller than the sum of its proper divisors (2878782).

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

2238978 is a wasteful number, since it uses less digits than its factorization.

2238978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53321.

The product of its digits is 48384, while the sum is 39.

The square root of 2238978 is about 1496.3214895202. The cubic root of 2238978 is about 130.8227503938.

The spelling of 2238978 in words is "two million, two hundred thirty-eight thousand, nine hundred seventy-eight".