13962221 has 16 divisors (see below), whose sum is σ = 17434368. Its totient is φ = 10886400.

The previous prime is 13962217. The next prime is 13962227. The reversal of 13962221 is 12226931.

It is not a de Polignac number, because 13962221 - 2² = 13962217 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13962227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5381 + ... + 7541.

It is an arithmetic number, because the mean of its divisors is an integer number (1089648).

Almost surely, 2^13962221 is an apocalyptic number.

It is an amenable number.

13962221 is a deficient number, since it is larger than the sum of its proper divisors (3472147).

13962221 is a wasteful number, since it uses less digits than its factorization.

13962221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252.

The product of its digits is 1296, while the sum is 26.

The square root of 13962221 is about 3736.6055451439. The cubic root of 13962221 is about 240.7972388233.

The spelling of 13962221 in words is "thirteen million, nine hundred sixty-two thousand, two hundred twenty-one".