1890888 has 16 divisors (see below), whose sum is σ = 4727280. Its totient is φ = 630288.

The previous prime is 1890877. The next prime is 1890901. The reversal of 1890888 is 8880981.

It is a happy number.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 39370 + ... + 39417.

It is an arithmetic number, because the mean of its divisors is an integer number (295455).

2^1890888 is an apocalyptic number.

It is an amenable number.

1890888 is an abundant number, since it is smaller than the sum of its proper divisors (2836392).

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

1890888 is a wasteful number, since it uses less digits than its factorization.

1890888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78796 (or 78792 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 42.

The square root of 1890888 is about 1375.0956330379. The cubic root of 1890888 is about 123.6579194616.

The spelling of 1890888 in words is "one million, eight hundred ninety thousand, eight hundred eighty-eight".