2531768 has 8 divisors (see below), whose sum is σ = 4747080. Its totient is φ = 1265880.

The previous prime is 2531761. The next prime is 2531773. The reversal of 2531768 is 8671352.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158228 + ... + 158243.

It is an arithmetic number, because the mean of its divisors is an integer number (593385).

2^2531768 is an apocalyptic number.

It is an amenable number.

2531768 is a deficient number, since it is larger than the sum of its proper divisors (2215312).

2531768 is a wasteful number, since it uses less digits than its factorization.

2531768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316477 (or 316473 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 2531768 is about 1591.1530410366. The cubic root of 2531768 is about 136.2933403070.

The spelling of 2531768 in words is "two million, five hundred thirty-one thousand, seven hundred sixty-eight".