1306992 has 40 divisors (see below), whose sum is σ = 3431824. Its totient is φ = 428544.

The previous prime is 1306979. The next prime is 1306997. The reversal of 1306992 is 2996031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306997) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3318 + ... + 3690.

2^1306992 is an apocalyptic number.

1306992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1306992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1715912).

1306992 is an abundant number, since it is smaller than the sum of its proper divisors (2124832).

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

1306992 is a wasteful number, since it uses less digits than its factorization.

1306992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 1306992 is about 1143.2375081321. The cubic root of 1306992 is about 109.3346057093.

The spelling of 1306992 in words is "one million, three hundred six thousand, nine hundred ninety-two".