2530140 has 24 divisors (see below), whose sum is σ = 7084560. Its totient is φ = 674688.

The previous prime is 2530139. The next prime is 2530141. The reversal of 2530140 is 410352.

It is an interprime number because it is at equal distance from previous prime (2530139) and next prime (2530141).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21025 + ... + 21144.

It is an arithmetic number, because the mean of its divisors is an integer number (295190).

2^2530140 is an apocalyptic number.

2530140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2530140 is an abundant number, since it is smaller than the sum of its proper divisors (4554420).

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

2530140 is a wasteful number, since it uses less digits than its factorization.

2530140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42181 (or 42179 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2530140 is about 1590.6413800728. The cubic root of 2530140 is about 136.2641205240.

Subtracting from 2530140 its sum of digits (15), we obtain a triangular number (2530125 = T₂₂₄₉).

Adding to 2530140 its reverse (410352), we get a palindrome (2940492).

The spelling of 2530140 in words is "two million, five hundred thirty thousand, one hundred forty".