2529989436 has 96 divisors (see below), whose sum is σ = 6757164288. Its totient is φ = 729861120.

The previous prime is 2529989417. The next prime is 2529989437. The reversal of 2529989436 is 6349899252.

2529989436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2529989437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 748831 + ... + 752201.

It is an arithmetic number, because the mean of its divisors is an integer number (70387128).

Almost surely, 2^2529989436 is an apocalyptic number.

2529989436 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2529989436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3378582144).

2529989436 is an abundant number, since it is smaller than the sum of its proper divisors (4227174852).

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

2529989436 is a wasteful number, since it uses less digits than its factorization.

2529989436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691 (or 3689 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 57.

The square root of 2529989436 is about 50299.0003479194. Note that the first 3 decimals coincide. The cubic root of 2529989436 is about 1362.6141752762.

The spelling of 2529989436 in words is "two billion, five hundred twenty-nine million, nine hundred eighty-nine thousand, four hundred thirty-six".