2630278 has 8 divisors (see below), whose sum is σ = 4509072. Its totient is φ = 1127256.

The previous prime is 2630239. The next prime is 2630281. The reversal of 2630278 is 8720362.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93925 + ... + 93952.

It is an arithmetic number, because the mean of its divisors is an integer number (563634).

2^2630278 is an apocalyptic number.

2630278 is a deficient number, since it is larger than the sum of its proper divisors (1878794).

2630278 is a wasteful number, since it uses less digits than its factorization.

2630278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187886.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2630278 is about 1621.8131828296. The cubic root of 2630278 is about 138.0386015377.

The spelling of 2630278 in words is "two million, six hundred thirty thousand, two hundred seventy-eight".