214423402 has 4 divisors (see below), whose sum is σ = 321635106. Its totient is φ = 107211700.

The previous prime is 214423369. The next prime is 214423409. The reversal of 214423402 is 204324412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 140446201 + 73977201 = 11851^2 + 8601^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (214423409) 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 as a sum of consecutive naturals, namely, 53605849 + ... + 53605852.

Almost surely, 2^214423402 is an apocalyptic number.

214423402 is a deficient number, since it is larger than the sum of its proper divisors (107211704).

214423402 is a wasteful number, since it uses less digits than its factorization.

214423402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107211703.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 214423402 is about 14643.2032697767. The cubic root of 214423402 is about 598.5366208076.

Adding to 214423402 its reverse (204324412), we get a palindrome (418747814).

The spelling of 214423402 in words is "two hundred fourteen million, four hundred twenty-three thousand, four hundred two".