14001404021 has 16 divisors (see below), whose sum is σ = 15659635200. Its totient is φ = 12408545520.

The previous prime is 14001403967. The next prime is 14001404023. The reversal of 14001404021 is 12040410041.

It is a cyclic number.

It is not a de Polignac number, because 14001404021 - 2²² = 13997209717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14001404023) 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, 219080 + ... + 275678.

It is an arithmetic number, because the mean of its divisors is an integer number (978727200).

Almost surely, 2^14001404021 is an apocalyptic number.

14001404021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14001404021 is a deficient number, since it is larger than the sum of its proper divisors (1658231179).

14001404021 is a wasteful number, since it uses less digits than its factorization.

14001404021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57176.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 14001404021 its reverse (12040410041), we get a palindrome (26041814062).

The spelling of 14001404021 in words is "fourteen billion, one million, four hundred four thousand, twenty-one".