1679662480 has 20 divisors (see below), whose sum is σ = 3905215452. Its totient is φ = 671864960.

The previous prime is 1679662447. The next prime is 1679662487. The reversal of 1679662480 is 842669761.

It can be written as a sum of positive squares in 2 ways, for example, as 1000330384 + 679332096 = 31628^2 + 26064^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (1679662487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10497811 + ... + 10497970.

Almost surely, 2^1679662480 is an apocalyptic number.

1679662480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1679662480 is an abundant number, since it is smaller than the sum of its proper divisors (2225552972).

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

1679662480 is a wasteful number, since it uses less digits than its factorization.

1679662480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20995794 (or 20995788 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 1679662480 is about 40983.6855346124. The cubic root of 1679662480 is about 1188.7047744057.

The spelling of 1679662480 in words is "one billion, six hundred seventy-nine million, six hundred sixty-two thousand, four hundred eighty".