1302406 has 16 divisors (see below), whose sum is σ = 2288160. Its totient is φ = 544320.

The previous prime is 1302397. The next prime is 1302443. The reversal of 1302406 is 6042031.

It is a super-2 number, since 2×1302406² = 3392522777672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1302406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561 + ... + 1708.

It is an arithmetic number, because the mean of its divisors is an integer number (143010).

2^1302406 is an apocalyptic number.

1302406 is a deficient number, since it is larger than the sum of its proper divisors (985754).

1302406 is a wasteful number, since it uses less digits than its factorization.

1302406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1302406 is about 1141.2300381606. The cubic root of 1302406 is about 109.2065773566.

Adding to 1302406 its reverse (6042031), we get a palindrome (7344437).

The spelling of 1302406 in words is "one million, three hundred two thousand, four hundred six".