2090000 has 100 divisors (see below), whose sum is σ = 5810640. Its totient is φ = 720000.

The previous prime is 2089979. The next prime is 2090003. The reversal of 2090000 is 902.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (11).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2090003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 109991 + ... + 110009.

2^2090000 is an apocalyptic number.

2090000 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 2090000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2905320).

2090000 is an abundant number, since it is smaller than the sum of its proper divisors (3720640).

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

2090000 is a wasteful number, since it uses less digits than its factorization.

2090000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 2090000 is about 1445.6832294801. The cubic root of 2090000 is about 127.8543264631.

Adding to 2090000 its reverse (902), we get a palindrome (2090902).

The spelling of 2090000 in words is "two million, ninety thousand".