219375242 has 24 divisors (see below), whose sum is σ = 364256676. Its totient is φ = 98738816.

The previous prime is 219375241. The next prime is 219375269. The reversal of 219375242 is 242573912.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 205320241 + 14055001 = 14329^2 + 3749^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (219375241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11888 + ... + 24084.

Almost surely, 2^219375242 is an apocalyptic number.

219375242 is a deficient number, since it is larger than the sum of its proper divisors (144881434).

219375242 is a wasteful number, since it uses less digits than its factorization.

219375242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12262 (or 12239 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 219375242 is about 14811.3214130273. The cubic root of 219375242 is about 603.1090855582.

The spelling of 219375242 in words is "two hundred nineteen million, three hundred seventy-five thousand, two hundred forty-two".