16421514 has 16 divisors (see below), whose sum is σ = 32910240. Its totient is φ = 5462640.

The previous prime is 16421513. The next prime is 16421521. The reversal of 16421514 is 41512461.

It is a happy number.

16421514 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16421514² = 539332244104392, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16421513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717 + ... + 5775.

It is an arithmetic number, because the mean of its divisors is an integer number (2056890).

Almost surely, 2^16421514 is an apocalyptic number.

16421514 is an abundant number, since it is smaller than the sum of its proper divisors (16488726).

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

16421514 is a wasteful number, since it uses less digits than its factorization.

16421514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605.

The product of its digits is 960, while the sum is 24.

The square root of 16421514 is about 4052.3467275148. The cubic root of 16421514 is about 254.1778674391.

Adding to 16421514 its reverse (41512461), we get a palindrome (57933975).

The spelling of 16421514 in words is "sixteen million, four hundred twenty-one thousand, five hundred fourteen".