2529720 has 48 divisors (see below), whose sum is σ = 8222760. Its totient is φ = 674496.

The previous prime is 2529707. The next prime is 2529721. The reversal of 2529720 is 279252.

It is a happy number.

2529720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2529721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3154 + ... + 3873.

2^2529720 is an apocalyptic number.

2529720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2529720 is an abundant number, since it is smaller than the sum of its proper divisors (5693040).

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

2529720 is a wasteful number, since it uses less digits than its factorization.

2529720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7044 (or 7037 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 2529720 is about 1590.5093523774. The cubic root of 2529720 is about 136.2565802169.

It can be divided in two parts, 2529 and 720, that added together give a square (3249 = 57²).

The spelling of 2529720 in words is "two million, five hundred twenty-nine thousand, seven hundred twenty".