1680026238 has 32 divisors (see below), whose sum is σ = 4072792320. Its totient is φ = 509098680.

The previous prime is 1680026213. The next prime is 1680026261. The reversal of 1680026238 is 8326200861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1413570 + ... + 1414757.

It is an arithmetic number, because the mean of its divisors is an integer number (127274760).

Almost surely, 2^1680026238 is an apocalyptic number.

1680026238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1680026238 is an abundant number, since it is smaller than the sum of its proper divisors (2392766082).

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

1680026238 is a wasteful number, since it uses less digits than its factorization.

1680026238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828349 (or 2828343 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 1680026238 is about 40988.1231334151. The cubic root of 1680026238 is about 1188.7905792753.

The spelling of 1680026238 in words is "one billion, six hundred eighty million, twenty-six thousand, two hundred thirty-eight".