1980432084 has 12 divisors (see below), whose sum is σ = 4621008224. Its totient is φ = 660144024.

The previous prime is 1980432053. The next prime is 1980432109. The reversal of 1980432084 is 4802340891.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1980432084² = 7844222478673166112, which contains 22 as substring.

It is a congruent number.

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, 82517992 + ... + 82518015.

Almost surely, 2^1980432084 is an apocalyptic number.

It is an amenable number.

1980432084 is an abundant number, since it is smaller than the sum of its proper divisors (2640576140).

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

1980432084 is a wasteful number, since it uses less digits than its factorization.

1980432084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165036014 (or 165036012 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 1980432084 is about 44502.0458406128. The cubic root of 1980432084 is about 1255.7985709204.

The spelling of 1980432084 in words is "one billion, nine hundred eighty million, four hundred thirty-two thousand, eighty-four".