2522728 has 32 divisors (see below), whose sum is σ = 5160960. Its totient is φ = 1149120.

The previous prime is 2522717. The next prime is 2522743. The reversal of 2522728 is 8272252.

It is a d-powerful number, because it can be written as 2¹⁴ + 5⁶ + 2¹⁷ + 2¹⁸ + 7³ + 2²¹ + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 2522696 and 2522705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13113 + ... + 13303.

It is an arithmetic number, because the mean of its divisors is an integer number (161280).

2^2522728 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 2522728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2580480).

2522728 is an abundant number, since it is smaller than the sum of its proper divisors (2638232).

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

2522728 is a wasteful number, since it uses less digits than its factorization.

2522728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337 (or 333 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 2522728 is about 1588.3097934597. The cubic root of 2522728 is about 136.1309292753.

The spelling of 2522728 in words is "two million, five hundred twenty-two thousand, seven hundred twenty-eight".