2002978 has 8 divisors (see below), whose sum is σ = 3135168. Its totient is φ = 957924.

The previous prime is 2002969. The next prime is 2002993. The reversal of 2002978 is 8792002.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21726 + ... + 21817.

It is an arithmetic number, because the mean of its divisors is an integer number (391896).

2^2002978 is an apocalyptic number.

2002978 is a deficient number, since it is larger than the sum of its proper divisors (1132190).

2002978 is a wasteful number, since it uses less digits than its factorization.

2002978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43568.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 2002978 is about 1415.2660527265. The cubic root of 2002978 is about 126.0546080588.

The spelling of 2002978 in words is "two million, two thousand, nine hundred seventy-eight".