1680404376 has 32 divisors (see below), whose sum is σ = 4801155840. Its totient is φ = 480115488.

The previous prime is 1680404359. The next prime is 1680404377. The reversal of 1680404376 is 6734040861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680404377) 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, 5001036 + ... + 5001371.

It is an arithmetic number, because the mean of its divisors is an integer number (150036120).

Almost surely, 2^1680404376 is an apocalyptic number.

It is an amenable number.

1680404376 is an abundant number, since it is smaller than the sum of its proper divisors (3120751464).

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

1680404376 is a wasteful number, since it uses less digits than its factorization.

1680404376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10002423 (or 10002419 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 1680404376 is about 40992.7356491367. The cubic root of 1680404376 is about 1188.8797630353.

The spelling of 1680404376 in words is "one billion, six hundred eighty million, four hundred four thousand, three hundred seventy-six".