2622278 has 16 divisors (see below), whose sum is σ = 4079376. Its totient is φ = 1263360.

The previous prime is 2622241. The next prime is 2622283. The reversal of 2622278 is 8722262.

It is a self number, because there is not a number n which added to its sum of digits gives 2622278.

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 7 ways as a sum of consecutive naturals, for example, 9125 + ... + 9407.

It is an arithmetic number, because the mean of its divisors is an integer number (254961).

2^2622278 is an apocalyptic number.

2622278 is a deficient number, since it is larger than the sum of its proper divisors (1457098).

2622278 is a wasteful number, since it uses less digits than its factorization.

2622278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439.

The product of its digits is 5376, while the sum is 29.

The square root of 2622278 is about 1619.3449292847. The cubic root of 2622278 is about 137.8985111119.

The spelling of 2622278 in words is "two million, six hundred twenty-two thousand, two hundred seventy-eight".