19214242 has 4 divisors (see below), whose sum is σ = 28821366. Its totient is φ = 9607120.

The previous prime is 19214231. The next prime is 19214243. The reversal of 19214242 is 24241291.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18309841 + 904401 = 4279^2 + 951^2 .

It is not an unprimeable number, because it can be changed into a prime (19214243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4803559 + ... + 4803562.

Almost surely, 2^19214242 is an apocalyptic number.

19214242 is a deficient number, since it is larger than the sum of its proper divisors (9607124).

19214242 is an equidigital number, since it uses as much as digits as its factorization.

19214242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9607123.

The product of its digits is 1152, while the sum is 25.

The square root of 19214242 is about 4383.4052972546. The cubic root of 19214242 is about 267.8393724473.

The spelling of 19214242 in words is "nineteen million, two hundred fourteen thousand, two hundred forty-two".