2520357380 has 24 divisors (see below), whose sum is σ = 5309673432. Its totient is φ = 1004919552.

The previous prime is 2520357377. The next prime is 2520357383. The reversal of 2520357380 is 837530252.

It is an interprime number because it is at equal distance from previous prime (2520357377) and next prime (2520357383).

It can be written as a sum of positive squares in 4 ways, for example, as 99520576 + 2420836804 = 9976^2 + 49202^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2520357380.

It is not an unprimeable number, because it can be changed into a prime (2520357383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195047 + ... + 207566.

It is an arithmetic number, because the mean of its divisors is an integer number (221236393).

Almost surely, 2^2520357380 is an apocalyptic number.

2520357380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2520357380 is an abundant number, since it is smaller than the sum of its proper divisors (2789316052).

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

2520357380 is a wasteful number, since it uses less digits than its factorization.

2520357380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402935 (or 402933 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 2520357380 is about 50203.1610558538. The cubic root of 2520357380 is about 1360.8827494208.

The spelling of 2520357380 in words is "two billion, five hundred twenty million, three hundred fifty-seven thousand, three hundred eighty".