1426005 has 40 divisors (see below), whose sum is σ = 2927232. Its totient is φ = 650592.

The previous prime is 1426003. The next prime is 1426043. The reversal of 1426005 is 5006241.

It is a happy number.

It is not a de Polignac number, because 1426005 - 2¹ = 1426003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2584 + ... + 3086.

2^1426005 is an apocalyptic number.

1426005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1426005 is an abundant number, since it is smaller than the sum of its proper divisors (1501227).

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

1426005 is an equidigital number, since it uses as much as digits as its factorization.

1426005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1426005 is about 1194.1545126155. The cubic root of 1426005 is about 112.5573041394.

The spelling of 1426005 in words is "one million, four hundred twenty-six thousand, five".