1679867400 has 48 divisors (see below), whose sum is σ = 5207590800. Its totient is φ = 447964480.

The previous prime is 1679867389. The next prime is 1679867443. The reversal of 1679867400 is 47689761.

It is a self number, because there is not a number n which added to its sum of digits gives 1679867400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1399290 + ... + 1400489.

It is an arithmetic number, because the mean of its divisors is an integer number (108491475).

Almost surely, 2^1679867400 is an apocalyptic number.

1679867400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1679867400 is an abundant number, since it is smaller than the sum of its proper divisors (3527723400).

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

1679867400 is a wasteful number, since it uses less digits than its factorization.

1679867400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799798 (or 2799789 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 1679867400 is about 40986.1854775484. The cubic root of 1679867400 is about 1188.7531133785.

The spelling of 1679867400 in words is "one billion, six hundred seventy-nine million, eight hundred sixty-seven thousand, four hundred".