1679450680 has 32 divisors (see below), whose sum is σ = 3780414000. Its totient is φ = 671486976.

The previous prime is 1679450653. The next prime is 1679450701. The reversal of 1679450680 is 860549761.

It is a self number, because there is not a number n which added to its sum of digits gives 1679450680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99496 + ... + 115144.

Almost surely, 2^1679450680 is an apocalyptic number.

1679450680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1679450680 is an abundant number, since it is smaller than the sum of its proper divisors (2100963320).

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

1679450680 is a wasteful number, since it uses less digits than its factorization.

1679450680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18343 (or 18339 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 1679450680 is about 40981.1014981296. The cubic root of 1679450680 is about 1188.6548083644.

The spelling of 1679450680 in words is "one billion, six hundred seventy-nine million, four hundred fifty thousand, six hundred eighty".