1979468080 has 80 divisors (see below), whose sum is σ = 4773935520. Its totient is φ = 762402816.

The previous prime is 1979468059. The next prime is 1979468081. The reversal of 1979468080 is 808649791.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (1979468081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1059307 + ... + 1061173.

It is an arithmetic number, because the mean of its divisors is an integer number (59674194).

Almost surely, 2^1979468080 is an apocalyptic number.

1979468080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1979468080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2386967760).

1979468080 is an abundant number, since it is smaller than the sum of its proper divisors (2794467440).

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

1979468080 is a wasteful number, since it uses less digits than its factorization.

1979468080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366 (or 2360 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 1979468080 is about 44491.2135145806. The cubic root of 1979468080 is about 1255.5947784697.

The spelling of 1979468080 in words is "one billion, nine hundred seventy-nine million, four hundred sixty-eight thousand, eighty".