2090917500 has 120 divisors (see below), whose sum is σ = 6967669632. Its totient is φ = 477912000.

The previous prime is 2090917489. The next prime is 2090917501. The reversal of 2090917500 is 57190902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2090917501) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 32587 + ... + 72413.

Almost surely, 2^2090917500 is an apocalyptic number.

2090917500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2090917500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3483834816).

2090917500 is an abundant number, since it is smaller than the sum of its proper divisors (4876752132).

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

2090917500 is a wasteful number, since it uses less digits than its factorization.

2090917500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39861 (or 39844 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 2090917500 is about 45726.5513678869. The cubic root of 2090917500 is about 1278.7303287184.

The spelling of 2090917500 in words is "two billion, ninety million, nine hundred seventeen thousand, five hundred".