1886406 has 8 divisors (see below), whose sum is σ = 3772824. Its totient is φ = 628800.

The previous prime is 1886389. The next prime is 1886411. The reversal of 1886406 is 6046881.

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

1886406 is an admirable 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, 157195 + ... + 157206.

It is an arithmetic number, because the mean of its divisors is an integer number (471603).

2^1886406 is an apocalyptic number.

1886406 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.

1886406 is a wasteful number, since it uses less digits than its factorization.

1886406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314406.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 1886406 is about 1373.4649613296. The cubic root of 1886406 is about 123.5601394281.

The spelling of 1886406 in words is "one million, eight hundred eighty-six thousand, four hundred six".