19438242 has 32 divisors (see below), whose sum is σ = 41472000. Its totient is φ = 6052608.

The previous prime is 19438231. The next prime is 19438247. The reversal of 19438242 is 24283491.

It is not an unprimeable number, because it can be changed into a prime (19438247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14559 + ... + 15837.

It is an arithmetic number, because the mean of its divisors is an integer number (1296000).

Almost surely, 2^19438242 is an apocalyptic number.

19438242 is an abundant number, since it is smaller than the sum of its proper divisors (22033758).

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

19438242 is a wasteful number, since it uses less digits than its factorization.

19438242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450.

The product of its digits is 13824, while the sum is 33.

The square root of 19438242 is about 4408.8821712538. The cubic root of 19438242 is about 268.8761792924.

The spelling of 19438242 in words is "nineteen million, four hundred thirty-eight thousand, two hundred forty-two".