1306478 has 8 divisors (see below), whose sum is σ = 2062920. Its totient is φ = 618840.

The previous prime is 1306477. The next prime is 1306483. The reversal of 1306478 is 8746031.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1306478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17153 + ... + 17228.

It is an arithmetic number, because the mean of its divisors is an integer number (257865).

2^1306478 is an apocalyptic number.

1306478 is a deficient number, since it is larger than the sum of its proper divisors (756442).

1306478 is a wasteful number, since it uses less digits than its factorization.

1306478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34402.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1306478 is about 1143.0126858439. The cubic root of 1306478 is about 109.3202711773.

Subtracting from 1306478 its sum of digits (29), we obtain a square (1306449 = 1143²).

The spelling of 1306478 in words is "one million, three hundred six thousand, four hundred seventy-eight".