2778322 has 8 divisors (see below), whose sum is σ = 4208256. Its totient is φ = 1375572.

The previous prime is 2778299. The next prime is 2778323. The reversal of 2778322 is 2238772.

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

It is not an unprimeable number, because it can be changed into a prime (2778323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6538 + ... + 6949.

It is an arithmetic number, because the mean of its divisors is an integer number (526032).

2^2778322 is an apocalyptic number.

2778322 is a deficient number, since it is larger than the sum of its proper divisors (1429934).

2778322 is a wasteful number, since it uses less digits than its factorization.

2778322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13592.

The product of its digits is 9408, while the sum is 31.

The square root of 2778322 is about 1666.8299253373. The cubic root of 2778322 is about 140.5812905801.

The spelling of 2778322 in words is "two million, seven hundred seventy-eight thousand, three hundred twenty-two".