216471422 has 8 divisors (see below), whose sum is σ = 325458336. Its totient is φ = 107985312.

The previous prime is 216471401. The next prime is 216471449. The reversal of 216471422 is 224174612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124118 + ... + 125849.

It is an arithmetic number, because the mean of its divisors is an integer number (40682292).

Almost surely, 2^216471422 is an apocalyptic number.

216471422 is a deficient number, since it is larger than the sum of its proper divisors (108986914).

216471422 is a wasteful number, since it uses less digits than its factorization.

216471422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250402.

The product of its digits is 5376, while the sum is 29.

The square root of 216471422 is about 14712.9678175411. The cubic root of 216471422 is about 600.4361846799.

The spelling of 216471422 in words is "two hundred sixteen million, four hundred seventy-one thousand, four hundred twenty-two".