2297790 has 72 divisors (see below), whose sum is σ = 6597864. Its totient is φ = 554400.

The previous prime is 2297777. The next prime is 2297797. The reversal of 2297790 is 977922.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2297797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10785 + ... + 10995.

It is an arithmetic number, because the mean of its divisors is an integer number (91637).

2^2297790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2297790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3298932).

2297790 is an abundant number, since it is smaller than the sum of its proper divisors (4300074).

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

2297790 is a wasteful number, since it uses less digits than its factorization.

2297790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 2297790 is about 1515.8462982770. The cubic root of 2297790 is about 131.9583201741.

It can be divided in two parts, 2 and 297790, that added together give a palindrome (297792).

The spelling of 2297790 in words is "two million, two hundred ninety-seven thousand, seven hundred ninety".