2278460 has 24 divisors (see below), whose sum is σ = 4915680. Its totient is φ = 886464.

The previous prime is 2278453. The next prime is 2278477. The reversal of 2278460 is 648722.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800 + ... + 2279.

It is an arithmetic number, because the mean of its divisors is an integer number (204820).

2^2278460 is an apocalyptic number.

2278460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2278460 is an abundant number, since it is smaller than the sum of its proper divisors (2637220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2278460 is a wasteful number, since it uses less digits than its factorization.

2278460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3125 (or 3123 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 2278460 is about 1509.4568559585. The cubic root of 2278460 is about 131.5872475887.

The spelling of 2278460 in words is "two million, two hundred seventy-eight thousand, four hundred sixty".