214305421 has 16 divisors (see below), whose sum is σ = 249638400. Its totient is φ = 182009520.

The previous prime is 214305407. The next prime is 214305457. The reversal of 214305421 is 124503412.

It is not a de Polignac number, because 214305421 - 2¹¹ = 214303373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 214305392 and 214305401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214305461) 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, 1030 + ... + 20728.

It is an arithmetic number, because the mean of its divisors is an integer number (15602400).

Almost surely, 2^214305421 is an apocalyptic number.

It is an amenable number.

214305421 is a deficient number, since it is larger than the sum of its proper divisors (35332979).

214305421 is a wasteful number, since it uses less digits than its factorization.

214305421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19776.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 214305421 is about 14639.1741911899. The cubic root of 214305421 is about 598.4268241717.

Adding to 214305421 its reverse (124503412), we get a palindrome (338808833).

The spelling of 214305421 in words is "two hundred fourteen million, three hundred five thousand, four hundred twenty-one".