1895664 has 40 divisors (see below), whose sum is σ = 4973392. Its totient is φ = 622080.

The previous prime is 1895657. The next prime is 1895693. The reversal of 1895664 is 4665981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3234 + ... + 3774.

2^1895664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1895664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2486696).

1895664 is an abundant number, since it is smaller than the sum of its proper divisors (3077728).

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

1895664 is a wasteful number, since it uses less digits than its factorization.

1895664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625 (or 619 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 1895664 is about 1376.8311443311. The cubic root of 1895664 is about 123.7619435468.

The spelling of 1895664 in words is "one million, eight hundred ninety-five thousand, six hundred sixty-four".