216157342 has 8 divisors (see below), whose sum is σ = 324570816. Its totient is φ = 107967072.

The previous prime is 216157273. The next prime is 216157391. The reversal of 216157342 is 243751612.

216157342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 53358 + ... + 57265.

It is an arithmetic number, because the mean of its divisors is an integer number (40571352).

Almost surely, 2^216157342 is an apocalyptic number.

216157342 is a deficient number, since it is larger than the sum of its proper divisors (108413474).

216157342 is a wasteful number, since it uses less digits than its factorization.

216157342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111602.

The product of its digits is 10080, while the sum is 31.

The square root of 216157342 is about 14702.2903657900. The cubic root of 216157342 is about 600.1456516768.

The spelling of 216157342 in words is "two hundred sixteen million, one hundred fifty-seven thousand, three hundred forty-two".