2278322 has 8 divisors (see below), whose sum is σ = 3423900. Its totient is φ = 1137024.

The previous prime is 2278313. The next prime is 2278343. The reversal of 2278322 is 2238722.

It can be written as a sum of positive squares in 2 ways, for example, as 2019241 + 259081 = 1421^2 + 509^2 .

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

It is a super-2 number, since 2×2278322² = 10381502271368, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁹ + 2¹⁵ + 7⁵ + 8 + 3 + 2¹⁷ + 2²¹ .

It is a junction number, because it is equal to n+sod(n) for n = 2278291 and 2278300.

It is a congruent number.

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, 1454 + ... + 2582.

2^2278322 is an apocalyptic number.

2278322 is a deficient number, since it is larger than the sum of its proper divisors (1145578).

2278322 is a wasteful number, since it uses less digits than its factorization.

2278322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140.

The product of its digits is 2688, while the sum is 26.

The square root of 2278322 is about 1509.4111434596. The cubic root of 2278322 is about 131.5845909102.

The spelling of 2278322 in words is "two million, two hundred seventy-eight thousand, three hundred twenty-two".