2001246522 has 64 divisors (see below), whose sum is σ = 4427785728. Its totient is φ = 597960000.

The previous prime is 2001246503. The next prime is 2001246539. The reversal of 2001246522 is 2256421002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2001246492 and 2001246501.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2205993 + ... + 2206899.

It is an arithmetic number, because the mean of its divisors is an integer number (69184152).

Almost surely, 2^2001246522 is an apocalyptic number.

2001246522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001246522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2213892864).

2001246522 is an abundant number, since it is smaller than the sum of its proper divisors (2426539206).

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

2001246522 is a wasteful number, since it uses less digits than its factorization.

2001246522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2001246522 is about 44735.2939187841. The cubic root of 2001246522 is about 1260.1827487513.

Adding to 2001246522 its reverse (2256421002), we get a palindrome (4257667524).

The spelling of 2001246522 in words is "two billion, one million, two hundred forty-six thousand, five hundred twenty-two".