19142286 has 8 divisors (see below), whose sum is σ = 38284584. Its totient is φ = 6380760.

The previous prime is 19142269. The next prime is 19142287. The reversal of 19142286 is 68224191.

It is a sphenic number, since it is the product of 3 distinct primes.

19142286 is an admirable number.

It is a super-2 number, since 2×19142286² = 732854226611592, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19142287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1595185 + ... + 1595196.

It is an arithmetic number, because the mean of its divisors is an integer number (4785573).

Almost surely, 2^19142286 is an apocalyptic number.

19142286 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19142286 is a wasteful number, since it uses less digits than its factorization.

19142286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3190386.

The product of its digits is 6912, while the sum is 33.

The square root of 19142286 is about 4375.1898244533. The cubic root of 19142286 is about 267.5046076011.

The spelling of 19142286 in words is "nineteen million, one hundred forty-two thousand, two hundred eighty-six".