2278316 has 6 divisors (see below), whose sum is σ = 3987060. Its totient is φ = 1139156.

The previous prime is 2278313. The next prime is 2278343. The reversal of 2278316 is 6138722.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2278313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284786 + ... + 284793.

It is an arithmetic number, because the mean of its divisors is an integer number (664510).

2^2278316 is an apocalyptic number.

It is an amenable number.

2278316 is a deficient number, since it is larger than the sum of its proper divisors (1708744).

2278316 is a wasteful number, since it uses less digits than its factorization.

2278316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569583 (or 569581 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 2278316 is about 1509.4091559282. The cubic root of 2278316 is about 131.5844754000.

The spelling of 2278316 in words is "two million, two hundred seventy-eight thousand, three hundred sixteen".