1426388 has 12 divisors (see below), whose sum is σ = 2510592. Its totient is φ = 709080.

The previous prime is 1426379. The next prime is 1426393. The reversal of 1426388 is 8836241.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170 + ... + 1697.

It is an arithmetic number, because the mean of its divisors is an integer number (209216).

2^1426388 is an apocalyptic number.

It is an amenable number.

1426388 is a deficient number, since it is larger than the sum of its proper divisors (1084204).

1426388 is a wasteful number, since it uses less digits than its factorization.

1426388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062 (or 2060 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 1426388 is about 1194.3148663564. The cubic root of 1426388 is about 112.5673802117.

The spelling of 1426388 in words is "one million, four hundred twenty-six thousand, three hundred eighty-eight".