1405339 has 8 divisors (see below), whose sum is σ = 1602720. Its totient is φ = 1220736.

The previous prime is 1405333. The next prime is 1405343. The reversal of 1405339 is 9335041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1405339 - 2⁷ = 1405211 is a prime.

It is a d-powerful number, because it can be written as 1 + 4⁹ + 0 + 5⁷ + 3⁷ + 3¹² + 9⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1405333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2959 + ... + 3400.

It is an arithmetic number, because the mean of its divisors is an integer number (200340).

2^1405339 is an apocalyptic number.

1405339 is a deficient number, since it is larger than the sum of its proper divisors (197381).

1405339 is a wasteful number, since it uses less digits than its factorization.

1405339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6389.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1405339 is about 1185.4699490076. The cubic root of 1405339 is about 112.0109204913.

The spelling of 1405339 in words is "one million, four hundred five thousand, three hundred thirty-nine".