216355414 has 16 divisors (see below), whose sum is σ = 357477120. Its totient is φ = 97387560.

The previous prime is 216355409. The next prime is 216355423. The reversal of 216355414 is 414553612.

It is a happy number.

216355414 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×216355414² = 93619330334222792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45474 + ... + 50005.

It is an arithmetic number, because the mean of its divisors is an integer number (22342320).

Almost surely, 2^216355414 is an apocalyptic number.

216355414 is a deficient number, since it is larger than the sum of its proper divisors (141121706).

216355414 is a wasteful number, since it uses less digits than its factorization.

216355414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95595.

The product of its digits is 14400, while the sum is 31.

The square root of 216355414 is about 14709.0249166966. The cubic root of 216355414 is about 600.3289067047.

The spelling of 216355414 in words is "two hundred sixteen million, three hundred fifty-five thousand, four hundred fourteen".