1680040802 has 16 divisors (see below), whose sum is σ = 2750328000. Its totient is φ = 763329840.

The previous prime is 1680040787. The next prime is 1680040823. The reversal of 1680040802 is 2080400861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41099 + ... + 71057.

It is an arithmetic number, because the mean of its divisors is an integer number (171895500).

Almost surely, 2^1680040802 is an apocalyptic number.

1680040802 is a deficient number, since it is larger than the sum of its proper divisors (1070287198).

1680040802 is a wasteful number, since it uses less digits than its factorization.

1680040802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32521.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 1680040802 is about 40988.3007942510. The cubic root of 1680040802 is about 1188.7940144391.

The spelling of 1680040802 in words is "one billion, six hundred eighty million, forty thousand, eight hundred two".