1308906 has 16 divisors (see below), whose sum is σ = 2908800. Its totient is φ = 436284.

The previous prime is 1308899. The next prime is 1308911. The reversal of 1308906 is 6098031.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1308906.

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, 12066 + ... + 12173.

It is an arithmetic number, because the mean of its divisors is an integer number (181800).

2^1308906 is an apocalyptic number.

1308906 is an abundant number, since it is smaller than the sum of its proper divisors (1599894).

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

1308906 is a wasteful number, since it uses less digits than its factorization.

1308906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24250 (or 24244 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1308906 is about 1144.0742982866. The cubic root of 1308906 is about 109.3879506842.

The spelling of 1308906 in words is "one million, three hundred eight thousand, nine hundred six".