5781980 has 12 divisors (see below), whose sum is σ = 12142200. Its totient is φ = 2312784.

The previous prime is 5781977. The next prime is 5782001. The reversal of 5781980 is 891875.

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, 144530 + ... + 144569.

It is an arithmetic number, because the mean of its divisors is an integer number (1011850).

Almost surely, 2^5781980 is an apocalyptic number.

It is an amenable number.

5781980 is an abundant number, since it is smaller than the sum of its proper divisors (6360220).

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

5781980 is a wasteful number, since it uses less digits than its factorization.

5781980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289108 (or 289106 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 5781980 is about 2404.5748064887. The cubic root of 5781980 is about 179.4839126599.

The spelling of 5781980 in words is "five million, seven hundred eighty-one thousand, nine hundred eighty".