13391622 has 16 divisors (see below), whose sum is σ = 29759280. Its totient is φ = 4463856.

The previous prime is 13391621. The next prime is 13391639. The reversal of 13391622 is 22619331.

13391622 is a `hidden beast` number, since 1 + 3 + 39 + 1 + 622 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13391621) 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, 123943 + ... + 124050.

It is an arithmetic number, because the mean of its divisors is an integer number (1859955).

Almost surely, 2^13391622 is an apocalyptic number.

13391622 is an abundant number, since it is smaller than the sum of its proper divisors (16367658).

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

13391622 is a wasteful number, since it uses less digits than its factorization.

13391622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248004 (or 247998 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 13391622 is about 3659.4565170254. The cubic root of 13391622 is about 237.4712622662.

The spelling of 13391622 in words is "thirteen million, three hundred ninety-one thousand, six hundred twenty-two".