1869142 has 8 divisors (see below), whose sum is σ = 3058632. Its totient is φ = 849600.

The previous prime is 1869139. The next prime is 1869169. The reversal of 1869142 is 2419681.

It is a happy number.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42459 + ... + 42502.

It is an arithmetic number, because the mean of its divisors is an integer number (382329).

2^1869142 is an apocalyptic number.

1869142 is a deficient number, since it is larger than the sum of its proper divisors (1189490).

1869142 is a wasteful number, since it uses less digits than its factorization.

1869142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84974.

The product of its digits is 3456, while the sum is 31.

The square root of 1869142 is about 1367.1656812545. The cubic root of 1869142 is about 123.1820513432.

The spelling of 1869142 in words is "one million, eight hundred sixty-nine thousand, one hundred forty-two".