1887000040 has 32 divisors (see below), whose sum is σ = 4430350080. Its totient is φ = 721982272.

The previous prime is 1887000007. The next prime is 1887000041. The reversal of 1887000040 is 400007881.

It is a junction number, because it is equal to n+sod(n) for n = 1886999972 and 1887000008.

It is not an unprimeable number, because it can be changed into a prime (1887000041) 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, 1024624 + ... + 1026463.

It is an arithmetic number, because the mean of its divisors is an integer number (138448440).

Almost surely, 2^1887000040 is an apocalyptic number.

1887000040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1887000040 is an abundant number, since it is smaller than the sum of its proper divisors (2543350040).

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

1887000040 is a wasteful number, since it uses less digits than its factorization.

1887000040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051121 (or 2051117 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 1887000040 is about 43439.6137183562. The cubic root of 1887000040 is about 1235.7310799759.

The spelling of 1887000040 in words is "one billion, eight hundred eighty-seven million, forty", and thus it is an aban number.