2018978 has 32 divisors (see below), whose sum is σ = 3541440. Its totient is φ = 855360.

The previous prime is 2018957. The next prime is 2018981. The reversal of 2018978 is 8798102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30101 + ... + 30167.

It is an arithmetic number, because the mean of its divisors is an integer number (110670).

2^2018978 is an apocalyptic number.

2018978 is a deficient number, since it is larger than the sum of its proper divisors (1522462).

2018978 is a wasteful number, since it uses less digits than its factorization.

2018978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 2018978 is about 1420.9074565221. The cubic root of 2018978 is about 126.3893641240.

The spelling of 2018978 in words is "two million, eighteen thousand, nine hundred seventy-eight".