1881488 has 40 divisors (see below), whose sum is σ = 4231872. Its totient is φ = 793728.

The previous prime is 1881479. The next prime is 1881493. The reversal of 1881488 is 8841881.

It is a nude number because it is divisible by every one of its digits.

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, 11906 + ... + 12062.

2^1881488 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 1881488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2115936).

1881488 is an abundant number, since it is smaller than the sum of its proper divisors (2350384).

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

1881488 is a wasteful number, since it uses less digits than its factorization.

1881488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 273 counting only the distinct ones).

The product of its digits is 16384, while the sum is 38.

The square root of 1881488 is about 1371.6734305220. The cubic root of 1881488 is about 123.4526691714.

The spelling of 1881488 in words is "one million, eight hundred eighty-one thousand, four hundred eighty-eight".