1861422 has 8 divisors (see below), whose sum is σ = 3722856. Its totient is φ = 620472.

The previous prime is 1861417. The next prime is 1861469. The reversal of 1861422 is 2241681.

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

1861422 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1861392 and 1861401.

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, 155113 + ... + 155124.

It is an arithmetic number, because the mean of its divisors is an integer number (465357).

2^1861422 is an apocalyptic number.

1861422 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.

1861422 is a wasteful number, since it uses less digits than its factorization.

1861422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310242.

The product of its digits is 768, while the sum is 24.

The square root of 1861422 is about 1364.3394005892. The cubic root of 1861422 is about 123.0122269556.

The spelling of 1861422 in words is "one million, eight hundred sixty-one thousand, four hundred twenty-two".