2290725 has 18 divisors (see below), whose sum is σ = 4103346. Its totient is φ = 1221600.

The previous prime is 2290721. The next prime is 2290727. The reversal of 2290725 is 5270922.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 199809 + 2090916 = 447^2 + 1446^2 .

It is not a de Polignac number, because 2290725 - 2² = 2290721 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 2⁴ + 2¹⁴ + 9⁵ + 0 + 7 + 2¹⁸ + 5⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2290721) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4866 + ... + 5315.

2^2290725 is an apocalyptic number.

2290725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2290725 is a deficient number, since it is larger than the sum of its proper divisors (1812621).

2290725 is a wasteful number, since it uses less digits than its factorization.

2290725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10197 (or 10189 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 2290725 is about 1513.5141228281. The cubic root of 2290725 is about 131.8229375289.

The spelling of 2290725 in words is "two million, two hundred ninety thousand, seven hundred twenty-five".