1982187672 has 64 divisors (see below), whose sum is σ = 5013465600. Its totient is φ = 653028480.

The previous prime is 1982187637. The next prime is 1982187719. The reversal of 1982187672 is 2767812891.

Its product of digits (677376) is a multiple of the sum of its prime factors (2016).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1493073 + ... + 1494399.

It is an arithmetic number, because the mean of its divisors is an integer number (78335400).

Almost surely, 2^1982187672 is an apocalyptic number.

1982187672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1982187672 is an abundant number, since it is smaller than the sum of its proper divisors (3031277928).

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

1982187672 is a wasteful number, since it uses less digits than its factorization.

1982187672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016 (or 2012 counting only the distinct ones).

The product of its digits is 677376, while the sum is 51.

The square root of 1982187672 is about 44521.7662722404. The cubic root of 1982187672 is about 1256.1695360557.

The spelling of 1982187672 in words is "one billion, nine hundred eighty-two million, one hundred eighty-seven thousand, six hundred seventy-two".