2531042442 has 12 divisors (see below), whose sum is σ = 5483925330. Its totient is φ = 843680808.

The previous prime is 2531042441. The next prime is 2531042447. The reversal of 2531042442 is 2442401352.

It can be written as a sum of positive squares in only one way, i.e., 1358733321 + 1172309121 = 36861^2 + 34239^2 .

It is not an unprimeable number, because it can be changed into a prime (2531042441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70306717 + ... + 70306752.

Almost surely, 2^2531042442 is an apocalyptic number.

2531042442 is an abundant number, since it is smaller than the sum of its proper divisors (2952882888).

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

2531042442 is a wasteful number, since it uses less digits than its factorization.

2531042442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140613477 (or 140613474 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 2531042442 is about 50309.4667234706. The cubic root of 2531042442 is about 1362.8031934414.

Adding to 2531042442 its reverse (2442401352), we get a palindrome (4973443794).

The spelling of 2531042442 in words is "two billion, five hundred thirty-one million, forty-two thousand, four hundred forty-two".