1881960 has 32 divisors (see below), whose sum is σ = 5646240. Its totient is φ = 501824.

The previous prime is 1881949. The next prime is 1881961. The reversal of 1881960 is 691881.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1881961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7722 + ... + 7961.

It is an arithmetic number, because the mean of its divisors is an integer number (176445).

2^1881960 is an apocalyptic number.

1881960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1881960 is an abundant number, since it is smaller than the sum of its proper divisors (3764280).

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

1881960 is a wasteful number, since it uses less digits than its factorization.

1881960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15697 (or 15693 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 1881960 is about 1371.8454723474. The cubic root of 1881960 is about 123.4629916374.

The spelling of 1881960 in words is "one million, eight hundred eighty-one thousand, nine hundred sixty".