14940021 has 8 divisors (see below), whose sum is σ = 20117664. Its totient is φ = 9861200.

The previous prime is 14940007. The next prime is 14940053. The reversal of 14940021 is 12004941.

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

It is a cyclic number.

It is not a de Polignac number, because 14940021 - 2⁵ = 14939989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14940021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14940071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24351 + ... + 24956.

It is an arithmetic number, because the mean of its divisors is an integer number (2514708).

Almost surely, 2^14940021 is an apocalyptic number.

It is an amenable number.

14940021 is a deficient number, since it is larger than the sum of its proper divisors (5177643).

14940021 is a wasteful number, since it uses less digits than its factorization.

14940021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49411.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 14940021 is about 3865.2323345434. The cubic root of 14940021 is about 246.2920551396.

Adding to 14940021 its reverse (12004941), we get a palindrome (26944962).

The spelling of 14940021 in words is "fourteen million, nine hundred forty thousand, twenty-one".