2531442004 has 24 divisors (see below), whose sum is σ = 5452337408. Its totient is φ = 1001449440.

The previous prime is 2531441981. The next prime is 2531442037. The reversal of 2531442004 is 4002441352.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2531442004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3476892 + ... + 3477619.

Almost surely, 2^2531442004 is an apocalyptic number.

It is an amenable number.

2531442004 is an abundant number, since it is smaller than the sum of its proper divisors (2920895404).

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

2531442004 is a wasteful number, since it uses less digits than its factorization.

2531442004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6954535 (or 6954533 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2531442004 is about 50313.4376086548. The cubic root of 2531442004 is about 1362.8749024612.

Adding to 2531442004 its reverse (4002441352), we get a palindrome (6533883356).

The spelling of 2531442004 in words is "two billion, five hundred thirty-one million, four hundred forty-two thousand, four".