2528210388 has 96 divisors (see below), whose sum is σ = 6612036480. Its totient is φ = 745216000.

The previous prime is 2528210371. The next prime is 2528210411. The reversal of 2528210388 is 8830128252.

It is a happy number.

It is a super-2 number, since 2×2528210388² = 12783695531982221088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3079018 + ... + 3079838.

It is an arithmetic number, because the mean of its divisors is an integer number (68875380).

Almost surely, 2^2528210388 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2528210388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3306018240).

2528210388 is an abundant number, since it is smaller than the sum of its proper divisors (4083826092).

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

2528210388 is a wasteful number, since it uses less digits than its factorization.

2528210388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449 (or 1447 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 2528210388 is about 50281.3125127020. The cubic root of 2528210388 is about 1362.2947109048.

The spelling of 2528210388 in words is "two billion, five hundred twenty-eight million, two hundred ten thousand, three hundred eighty-eight".