1799940086 has 8 divisors (see below), whose sum is σ = 3085611600. Its totient is φ = 771402888.

The previous prime is 1799940067. The next prime is 1799940097. The reversal of 1799940086 is 6800499971.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64283561 + ... + 64283588.

It is an arithmetic number, because the mean of its divisors is an integer number (385701450).

Almost surely, 2^1799940086 is an apocalyptic number.

1799940086 is a deficient number, since it is larger than the sum of its proper divisors (1285671514).

1799940086 is a wasteful number, since it uses less digits than its factorization.

1799940086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128567158.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 1799940086 is about 42425.7007720556. The cubic root of 1799940086 is about 1216.4269023334.

It can be divided in two parts, 17999 and 40086, that added together give a palindrome (58085).

The spelling of 1799940086 in words is "one billion, seven hundred ninety-nine million, nine hundred forty thousand, eighty-six".