219040242 has 16 divisors (see below), whose sum is σ = 438232032. Its totient is φ = 72988160.

The previous prime is 219040181. The next prime is 219040249. The reversal of 219040242 is 242040912.

219040242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (219040249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22813 + ... + 30959.

It is an arithmetic number, because the mean of its divisors is an integer number (27389502).

Almost surely, 2^219040242 is an apocalyptic number.

219040242 is an abundant number, since it is smaller than the sum of its proper divisors (219191790).

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

219040242 is a wasteful number, since it uses less digits than its factorization.

219040242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12633.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 219040242 is about 14800.0081756734. The cubic root of 219040242 is about 602.8019337991.

The spelling of 219040242 in words is "two hundred nineteen million, forty thousand, two hundred forty-two".