1306040 has 32 divisors (see below), whose sum is σ = 2976480. Its totient is φ = 515712.

The previous prime is 1306033. The next prime is 1306051. The reversal of 1306040 is 406031.

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, 3962 + ... + 4278.

It is an arithmetic number, because the mean of its divisors is an integer number (93015).

2^1306040 is an apocalyptic number.

1306040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306040 is an abundant number, since it is smaller than the sum of its proper divisors (1670440).

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

1306040 is a wasteful number, since it uses less digits than its factorization.

1306040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1306040 is about 1142.8210708593. The cubic root of 1306040 is about 109.3080531809.

Subtracting from 1306040 its reverse (406031), we obtain a palindrome (900009).

The spelling of 1306040 in words is "one million, three hundred six thousand, forty".