2278468 has 6 divisors (see below), whose sum is σ = 3987326. Its totient is φ = 1139232.

The previous prime is 2278453. The next prime is 2278477. The reversal of 2278468 is 8648722.

It can be written as a sum of positive squares in only one way, i.e., 1871424 + 407044 = 1368^2 + 638^2 .

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284805 + ... + 284812.

2^2278468 is an apocalyptic number.

It is an amenable number.

2278468 is a deficient number, since it is larger than the sum of its proper divisors (1708858).

2278468 is a wasteful number, since it uses less digits than its factorization.

2278468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569621 (or 569619 counting only the distinct ones).

The product of its digits is 43008, while the sum is 37.

The square root of 2278468 is about 1509.4595059159. The cubic root of 2278468 is about 131.5874015957.

The spelling of 2278468 in words is "two million, two hundred seventy-eight thousand, four hundred sixty-eight".