2278925 has 12 divisors (see below), whose sum is σ = 3083136. Its totient is φ = 1657200.

The previous prime is 2278891. The next prime is 2278943. The reversal of 2278925 is 5298722.

It is not a de Polignac number, because 2278925 - 2¹⁰ = 2277901 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3869 + ... + 4418.

It is an arithmetic number, because the mean of its divisors is an integer number (256928).

2^2278925 is an apocalyptic number.

2278925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2278925 is a deficient number, since it is larger than the sum of its proper divisors (804211).

2278925 is a wasteful number, since it uses less digits than its factorization.

2278925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8308 (or 8303 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 2278925 is about 1509.6108770143. The cubic root of 2278925 is about 131.5961986504.

The spelling of 2278925 in words is "two million, two hundred seventy-eight thousand, nine hundred twenty-five".