2040025 has 12 divisors (see below), whose sum is σ = 2724652. Its totient is φ = 1506240.

The previous prime is 2040019. The next prime is 2040029. The reversal of 2040025 is 5200402.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 841 + 2039184 = 29^2 + 1428^2 .

It is not a de Polignac number, because 2040025 - 2⁵ = 2039993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2039987 and 2040014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2814 + ... + 3463.

2^2040025 is an apocalyptic number.

2040025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2040025 is a deficient number, since it is larger than the sum of its proper divisors (684627).

2040025 is a wasteful number, since it uses less digits than its factorization.

2040025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6300 (or 6295 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 2040025 is about 1428.2944374323. The cubic root of 2040025 is about 126.8270321877.

Adding to 2040025 its reverse (5200402), we get a palindrome (7240427).

The spelling of 2040025 in words is "two million, forty thousand, twenty-five".