1428426 has 12 divisors (see below), whose sum is σ = 3094962. Its totient is φ = 476136.

The previous prime is 1428419. The next prime is 1428431. The reversal of 1428426 is 6248241.

It can be written as a sum of positive squares in only one way, i.e., 1212201 + 216225 = 1101^2 + 465^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1428426.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39661 + ... + 39696.

2^1428426 is an apocalyptic number.

1428426 is an abundant number, since it is smaller than the sum of its proper divisors (1666536).

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

1428426 is a wasteful number, since it uses less digits than its factorization.

1428426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79365 (or 79362 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 1428426 is about 1195.1677706498. The cubic root of 1428426 is about 112.6209661802.

The spelling of 1428426 in words is "one million, four hundred twenty-eight thousand, four hundred twenty-six".