4278426 has 16 divisors (see below), whose sum is σ = 8580000. Its totient is φ = 1422288.

The previous prime is 4278413. The next prime is 4278431. The reversal of 4278426 is 6248724.

It is a Curzon 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, 2280 + ... + 3708.

It is an arithmetic number, because the mean of its divisors is an integer number (536250).

Almost surely, 2^4278426 is an apocalyptic number.

4278426 is an abundant number, since it is smaller than the sum of its proper divisors (4301574).

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

4278426 is a wasteful number, since it uses less digits than its factorization.

4278426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933.

The product of its digits is 21504, while the sum is 33.

The square root of 4278426 is about 2068.4356407682. The cubic root of 4278426 is about 162.3409220349.

The spelling of 4278426 in words is "four million, two hundred seventy-eight thousand, four hundred twenty-six".