2528918028 has 324 divisors, whose sum is σ = 8542989000. Its totient is φ = 626476032.

The previous prime is 2528918027. The next prime is 2528918039. The reversal of 2528918028 is 8208198252.

It is not an unprimeable number, because it can be changed into a prime (2528918023) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 5067723 + ... + 5068221.

It is an arithmetic number, because the mean of its divisors is an integer number (26367250).

Almost surely, 2^2528918028 is an apocalyptic number.

2528918028 is a gapful number since it is divisible by the number (28) 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 2528918028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4271494500).

2528918028 is an abundant number, since it is smaller than the sum of its proper divisors (6014070972).

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

2528918028 is a wasteful number, since it uses less digits than its factorization.

2528918028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 2528918028 is about 50288.3488295251. The cubic root of 2528918028 is about 1362.4218000513.

The spelling of 2528918028 in words is "two billion, five hundred twenty-eight million, nine hundred eighteen thousand, twenty-eight".