2809413528 has 32 divisors (see below), whose sum is σ = 7027713600. Its totient is φ = 935913888.

The previous prime is 2809413493. The next prime is 2809413539. The reversal of 2809413528 is 8253149082.

It is a self number, because there is not a number n which added to its sum of digits gives 2809413528.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7383 + ... + 75321.

It is an arithmetic number, because the mean of its divisors is an integer number (219616050).

Almost surely, 2^2809413528 is an apocalyptic number.

It is an amenable number.

2809413528 is an abundant number, since it is smaller than the sum of its proper divisors (4218300072).

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

2809413528 is a wasteful number, since it uses less digits than its factorization.

2809413528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69671 (or 69667 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 2809413528 is about 53003.9010639783. The cubic root of 2809413528 is about 1411.0375020818.

The spelling of 2809413528 in words is "two billion, eight hundred nine million, four hundred thirteen thousand, five hundred twenty-eight".