216343422 has 24 divisors (see below), whose sum is σ = 484908840. Its totient is φ = 69627600.

The previous prime is 216343417. The next prime is 216343441. The reversal of 216343422 is 224343612.

216343422 is a `hidden beast` number, since 2 + 1 + 634 + 3 + 4 + 22 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206704 + ... + 207747.

It is an arithmetic number, because the mean of its divisors is an integer number (20204535).

Almost surely, 2^216343422 is an apocalyptic number.

216343422 is an abundant number, since it is smaller than the sum of its proper divisors (268565418).

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

216343422 is a wasteful number, since it uses less digits than its factorization.

216343422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414488 (or 414485 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 216343422 is about 14708.6172701583. The cubic root of 216343422 is about 600.3178149597.

The spelling of 216343422 in words is "two hundred sixteen million, three hundred forty-three thousand, four hundred twenty-two".