2086320290 has 16 divisors (see below), whose sum is σ = 3806821368. Its totient is φ = 823095936.

The previous prime is 2086320281. The next prime is 2086320319. The reversal of 2086320290 is 920236802.

It can be written as a sum of positive squares in 4 ways, for example, as 1394051569 + 692268721 = 37337^2 + 26311^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1428257 + ... + 1429716.

Almost surely, 2^2086320290 is an apocalyptic number.

2086320290 is a deficient number, since it is larger than the sum of its proper divisors (1720501078).

2086320290 is a wasteful number, since it uses less digits than its factorization.

2086320290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858053.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2086320290 is about 45676.2552099009. The cubic root of 2086320290 is about 1277.7924779965.

The spelling of 2086320290 in words is "two billion, eighty-six million, three hundred twenty thousand, two hundred ninety".