214402071 has 16 divisors (see below), whose sum is σ = 309044736. Its totient is φ = 131431776.

The previous prime is 214402057. The next prime is 214402081. The reversal of 214402071 is 170204412.

It is a happy number.

It is not a de Polignac number, because 214402071 - 2¹¹ = 214400023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214402051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195 + ... + 20708.

It is an arithmetic number, because the mean of its divisors is an integer number (19315296).

Almost surely, 2^214402071 is an apocalyptic number.

214402071 is a deficient number, since it is larger than the sum of its proper divisors (94642665).

214402071 is a wasteful number, since it uses less digits than its factorization.

214402071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21182.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 214402071 is about 14642.4748932686. The cubic root of 214402071 is about 598.5167725262.

Adding to 214402071 its reverse (170204412), we get a palindrome (384606483).

The spelling of 214402071 in words is "two hundred fourteen million, four hundred two thousand, seventy-one".