13404291 has 12 divisors (see below), whose sum is σ = 18864072. Its totient is φ = 8465184.

The previous prime is 13404289. The next prime is 13404299. The reversal of 13404291 is 19240431.

It is not a de Polignac number, because 13404291 - 2¹ = 13404289 is a prime.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13404299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5106 + ... + 7271.

It is an arithmetic number, because the mean of its divisors is an integer number (1572006).

Almost surely, 2^13404291 is an apocalyptic number.

13404291 is a deficient number, since it is larger than the sum of its proper divisors (5459781).

13404291 is a wasteful number, since it uses less digits than its factorization.

13404291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12418 (or 12399 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 13404291 is about 3661.1871025666. The cubic root of 13404291 is about 237.5461243750.

It can be divided in two parts, 13404 and 291, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 13404291 in words is "thirteen million, four hundred four thousand, two hundred ninety-one".