2001042452 has 12 divisors (see below), whose sum is σ = 3510829140. Its totient is φ = 997948416.

The previous prime is 2001042451. The next prime is 2001042457. The reversal of 2001042452 is 2542401002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1181021956 + 820020496 = 34366^2 + 28636^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001042451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641453 + ... + 644564.

It is an arithmetic number, because the mean of its divisors is an integer number (292569095).

Almost surely, 2^2001042452 is an apocalyptic number.

It is an amenable number.

2001042452 is a deficient number, since it is larger than the sum of its proper divisors (1509786688).

2001042452 is a wasteful number, since it uses less digits than its factorization.

2001042452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286410 (or 1286408 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2001042452 is about 44733.0129993498. The cubic root of 2001042452 is about 1260.1399130766.

Adding to 2001042452 its reverse (2542401002), we get a palindrome (4543443454).

The spelling of 2001042452 in words is "two billion, one million, forty-two thousand, four hundred fifty-two".