2278430 has 48 divisors (see below), whose sum is σ = 5171040. Its totient is φ = 707520.

The previous prime is 2278429. The next prime is 2278453. The reversal of 2278430 is 348722.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2278430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8336 + ... + 8604.

It is an arithmetic number, because the mean of its divisors is an integer number (107730).

2^2278430 is an apocalyptic number.

2278430 is an abundant number, since it is smaller than the sum of its proper divisors (2892610).

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

2278430 is a wasteful number, since it uses less digits than its factorization.

2278430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 2278430 is about 1509.4469185765. The cubic root of 2278430 is about 131.5866700590.

The spelling of 2278430 in words is "two million, two hundred seventy-eight thousand, four hundred thirty".