13922506 has 8 divisors (see below), whose sum is σ = 22490244. Its totient is φ = 6425760.

The previous prime is 13922483. The next prime is 13922509. The reversal of 13922506 is 60522931.

It can be written as a sum of positive squares in 2 ways, for example, as 12075625 + 1846881 = 3475^2 + 1359^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13922509) 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 3 ways as a sum of consecutive naturals, for example, 267715 + ... + 267766.

Almost surely, 2^13922506 is an apocalyptic number.

13922506 is a deficient number, since it is larger than the sum of its proper divisors (8567738).

13922506 is a wasteful number, since it uses less digits than its factorization.

13922506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535496.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 13922506 is about 3731.2874453732. The cubic root of 13922506 is about 240.5687091804.

The spelling of 13922506 in words is "thirteen million, nine hundred twenty-two thousand, five hundred six".