19142242 has 12 divisors (see below), whose sum is σ = 33401430. Its totient is φ = 8203776.

The previous prime is 19142237. The next prime is 19142251. The reversal of 19142242 is 24224191.

It can be written as a sum of positive squares in only one way, i.e., 15752961 + 3389281 = 3969^2 + 1841^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97567 + ... + 97762.

Almost surely, 2^19142242 is an apocalyptic number.

19142242 is a deficient number, since it is larger than the sum of its proper divisors (14259188).

19142242 is a wasteful number, since it uses less digits than its factorization.

19142242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195345 (or 195338 counting only the distinct ones).

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

The square root of 19142242 is about 4375.1847960972. The cubic root of 19142242 is about 267.5044026410.

It can be divided in two parts, 19142 and 242, that multiplied together give a palindrome (4632364).

The spelling of 19142242 in words is "nineteen million, one hundred forty-two thousand, two hundred forty-two".