2090275664 has 20 divisors (see below), whose sum is σ = 4288139604. Its totient is φ = 983659008.

The previous prime is 2090275643. The next prime is 2090275667. The reversal of 2090275664 is 4665720902.

It can be written as a sum of positive squares in 2 ways, for example, as 1345422400 + 744853264 = 36680^2 + 27292^2 .

It is a super-4 number, since 4×2090275664⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2090275667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3842147 + ... + 3842690.

Almost surely, 2^2090275664 is an apocalyptic number.

It is an amenable number.

2090275664 is an abundant number, since it is smaller than the sum of its proper divisors (2197863940).

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

2090275664 is a wasteful number, since it uses less digits than its factorization.

2090275664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7684862 (or 7684856 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 2090275664 is about 45719.5326310320. The cubic root of 2090275664 is about 1278.5994740175.

The spelling of 2090275664 in words is "two billion, ninety million, two hundred seventy-five thousand, six hundred sixty-four".