2001331524 has 48 divisors (see below), whose sum is σ = 4841403840. Its totient is φ = 642984960.

The previous prime is 2001331469. The next prime is 2001331537. The reversal of 2001331524 is 4251331002.

It is a self number, because there is not a number n which added to its sum of digits gives 2001331524.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16332 + ... + 65340.

It is an arithmetic number, because the mean of its divisors is an integer number (100862580).

Almost surely, 2^2001331524 is an apocalyptic number.

It is an amenable number.

2001331524 is an abundant number, since it is smaller than the sum of its proper divisors (2840072316).

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

2001331524 is a wasteful number, since it uses less digits than its factorization.

2001331524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49140 (or 49138 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2001331524 is about 44736.2439639271. The cubic root of 2001331524 is about 1260.2005903876.

Adding to 2001331524 its reverse (4251331002), we get a palindrome (6252662526).

The spelling of 2001331524 in words is "two billion, one million, three hundred thirty-one thousand, five hundred twenty-four".