2530040440 has 64 divisors (see below), whose sum is σ = 5737586400. Its totient is φ = 1004057088.

The previous prime is 2530040393. The next prime is 2530040449. The reversal of 2530040440 is 440400352.

It is a happy number.

It is a super-2 number, since 2×2530040440² = 12802209256070787200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530040449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4309827 + ... + 4310413.

Almost surely, 2^2530040440 is an apocalyptic number.

2530040440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2530040440 is an abundant number, since it is smaller than the sum of its proper divisors (3207545960).

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

2530040440 is a wasteful number, since it uses less digits than its factorization.

2530040440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264 (or 1260 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 2530040440 is about 50299.5073534523. The cubic root of 2530040440 is about 1362.6233318765.

Adding to 2530040440 its reverse (440400352), we get a palindrome (2970440792).

The spelling of 2530040440 in words is "two billion, five hundred thirty million, forty thousand, four hundred forty".