1886164 has 48 divisors (see below), whose sum is σ = 4064256. Its totient is φ = 748800.

The previous prime is 1886153. The next prime is 1886173. The reversal of 1886164 is 4616881.

It is a super-2 number, since 2×1886164² = 7115229269792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35562 + ... + 35614.

It is an arithmetic number, because the mean of its divisors is an integer number (84672).

2^1886164 is an apocalyptic number.

1886164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1886164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2032128).

1886164 is an abundant number, since it is smaller than the sum of its proper divisors (2178092).

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

1886164 is a wasteful number, since it uses less digits than its factorization.

1886164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 134 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The square root of 1886164 is about 1373.3768601516. The cubic root of 1886164 is about 123.5548555121.

The spelling of 1886164 in words is "one million, eight hundred eighty-six thousand, one hundred sixty-four".