2278148 has 12 divisors (see below), whose sum is σ = 4005120. Its totient is φ = 1133832.

The previous prime is 2278141. The next prime is 2278181. The reversal of 2278148 is 8418722.

It is a super-3 number, since 3×2278148³ = 35470479431373533376, which contains 333 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2278141) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 236 + ... + 2147.

It is an arithmetic number, because the mean of its divisors is an integer number (333760).

2^2278148 is an apocalyptic number.

It is an amenable number.

2278148 is a deficient number, since it is larger than the sum of its proper divisors (1726972).

2278148 is a wasteful number, since it uses less digits than its factorization.

2278148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626 (or 2624 counting only the distinct ones).

The product of its digits is 7168, while the sum is 32.

The square root of 2278148 is about 1509.3535039877. The cubic root of 2278148 is about 131.5812410323.

The spelling of 2278148 in words is "two million, two hundred seventy-eight thousand, one hundred forty-eight".