2622478 has 4 divisors (see below), whose sum is σ = 3933720. Its totient is φ = 1311238.

The previous prime is 2622469. The next prime is 2622479. The reversal of 2622478 is 8742262.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8742262 = 2 ⋅4371131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2622479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655618 + ... + 655621.

It is an arithmetic number, because the mean of its divisors is an integer number (983430).

2^2622478 is an apocalyptic number.

2622478 is a deficient number, since it is larger than the sum of its proper divisors (1311242).

2622478 is a wasteful number, since it uses less digits than its factorization.

2622478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311241.

The product of its digits is 10752, while the sum is 31.

The square root of 2622478 is about 1619.4066814732. The cubic root of 2622478 is about 137.9020168426.

The spelling of 2622478 in words is "two million, six hundred twenty-two thousand, four hundred seventy-eight".