2278522 has 8 divisors (see below), whose sum is σ = 3427200. Its totient is φ = 1136124.

The previous prime is 2278519. The next prime is 2278543. The reversal of 2278522 is 2258722.

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, 522 + ... + 2197.

It is an arithmetic number, because the mean of its divisors is an integer number (428400).

2^2278522 is an apocalyptic number.

2278522 is a deficient number, since it is larger than the sum of its proper divisors (1148678).

2278522 is a wasteful number, since it uses less digits than its factorization.

2278522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140.

The product of its digits is 4480, while the sum is 28.

The square root of 2278522 is about 1509.4773930073. The cubic root of 2278522 is about 131.5884411339.

The spelling of 2278522 in words is "two million, two hundred seventy-eight thousand, five hundred twenty-two".