219347242 has 8 divisors (see below), whose sum is σ = 340366500. Its totient is φ = 105891744.

The previous prime is 219347239. The next prime is 219347279. The reversal of 219347242 is 242743912.

219347242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 196028001 + 23319241 = 14001^2 + 4829^2 .

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

It is a super-2 number, since 2×219347242² = 96226425146013128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 219347198 and 219347207.

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, 1890867 + ... + 1890982.

Almost surely, 2^219347242 is an apocalyptic number.

219347242 is a deficient number, since it is larger than the sum of its proper divisors (121019258).

219347242 is a wasteful number, since it uses less digits than its factorization.

219347242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3781880.

The product of its digits is 24192, while the sum is 34.

The square root of 219347242 is about 14810.3761599765. The cubic root of 219347242 is about 603.0834251529.

The spelling of 219347242 in words is "two hundred nineteen million, three hundred forty-seven thousand, two hundred forty-two".