1878142 has 8 divisors (see below), whose sum is σ = 3219696. Its totient is φ = 804912.

The previous prime is 1878139. The next prime is 1878181. The reversal of 1878142 is 2418781.

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

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, 67063 + ... + 67090.

It is an arithmetic number, because the mean of its divisors is an integer number (402462).

2^1878142 is an apocalyptic number.

1878142 is a deficient number, since it is larger than the sum of its proper divisors (1341554).

1878142 is a wasteful number, since it uses less digits than its factorization.

1878142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134162.

The product of its digits is 3584, while the sum is 31.

The square root of 1878142 is about 1370.4532097084. The cubic root of 1878142 is about 123.3794438413.

The spelling of 1878142 in words is "one million, eight hundred seventy-eight thousand, one hundred forty-two".