2531824 has 20 divisors (see below), whose sum is σ = 4933960. Its totient is φ = 1258560.

The previous prime is 2531821. The next prime is 2531831. The reversal of 2531824 is 4281352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531821) 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, 3319 + ... + 4009.

It is an arithmetic number, because the mean of its divisors is an integer number (246698).

2^2531824 is an apocalyptic number.

It is an amenable number.

2531824 is a deficient number, since it is larger than the sum of its proper divisors (2402136).

2531824 is a wasteful number, since it uses less digits than its factorization.

2531824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928 (or 922 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 2531824 is about 1591.1706382409. The cubic root of 2531824 is about 136.2943451872.

The spelling of 2531824 in words is "two million, five hundred thirty-one thousand, eight hundred twenty-four".