1680522790 has 32 divisors (see below), whose sum is σ = 3053868480. Its totient is φ = 665808000.

The previous prime is 1680522751. The next prime is 1680522791. The reversal of 1680522790 is 972250861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680522791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 585960 + ... + 588820.

It is an arithmetic number, because the mean of its divisors is an integer number (95433390).

Almost surely, 2^1680522790 is an apocalyptic number.

1680522790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1680522790 is a deficient number, since it is larger than the sum of its proper divisors (1373345690).

1680522790 is a wasteful number, since it uses less digits than its factorization.

1680522790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3408.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 1680522790 is about 40994.1799527689. The cubic root of 1680522790 is about 1188.9076881989.

The spelling of 1680522790 in words is "one billion, six hundred eighty million, five hundred twenty-two thousand, seven hundred ninety".