2670478 has 4 divisors (see below), whose sum is σ = 4005720. Its totient is φ = 1335238.

The previous prime is 2670467. The next prime is 2670491. The reversal of 2670478 is 8740762.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 667618 + ... + 667621.

It is an arithmetic number, because the mean of its divisors is an integer number (1001430).

2^2670478 is an apocalyptic number.

2670478 is a deficient number, since it is larger than the sum of its proper divisors (1335242).

2670478 is a wasteful number, since it uses less digits than its factorization.

2670478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335241.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 2670478 is about 1634.1597229157. The cubic root of 2670478 is about 138.7382891937.

The spelling of 2670478 in words is "two million, six hundred seventy thousand, four hundred seventy-eight".