1679680368 has 40 divisors (see below), whose sum is σ = 4821306000. Its totient is φ = 559893312.

The previous prime is 1679680367. The next prime is 1679680369. The reversal of 1679680368 is 8630869761.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1679680367) and next prime (1679680369).

It is a super-2 number, since 2×1679680368² = 5642652277289230848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1679680367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1943643 + ... + 1944506.

It is an arithmetic number, because the mean of its divisors is an integer number (120532650).

Almost surely, 2^1679680368 is an apocalyptic number.

1679680368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1679680368 is an abundant number, since it is smaller than the sum of its proper divisors (3141625632).

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

1679680368 is a wasteful number, since it uses less digits than its factorization.

1679680368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3888166 (or 3888154 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 1679680368 is about 40983.9037672109. The cubic root of 1679680368 is about 1188.7089941970.

The spelling of 1679680368 in words is "one billion, six hundred seventy-nine million, six hundred eighty thousand, three hundred sixty-eight".