2130302440 has 96 divisors (see below), whose sum is σ = 5588745120. Its totient is φ = 728687232.

The previous prime is 2130302437. The next prime is 2130302443. The reversal of 2130302440 is 442030312.

It is an interprime number because it is at equal distance from previous prime (2130302437) and next prime (2130302443).

It is not an unprimeable number, because it can be changed into a prime (2130302443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1071127 + ... + 1073113.

It is an arithmetic number, because the mean of its divisors is an integer number (58216095).

Almost surely, 2^2130302440 is an apocalyptic number.

2130302440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2130302440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2794372560).

2130302440 is an abundant number, since it is smaller than the sum of its proper divisors (3458442680).

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

2130302440 is a wasteful number, since it uses less digits than its factorization.

2130302440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559 (or 2548 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2130302440 is about 46155.1994904149. The cubic root of 2130302440 is about 1286.7092456699.

Adding to 2130302440 its reverse (442030312), we get a palindrome (2572332752).

The spelling of 2130302440 in words is "two billion, one hundred thirty million, three hundred two thousand, four hundred forty".