8820402849 has 8 divisors (see below), whose sum is σ = 13067263520. Its totient is φ = 5880268548.

The previous prime is 8820402841. The next prime is 8820402869. The reversal of 8820402849 is 9482040288.

It is a happy number.

It is not a de Polignac number, because 8820402849 - 2³ = 8820402841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8820402841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163340767 + ... + 163340820.

It is an arithmetic number, because the mean of its divisors is an integer number (1633407940).

Almost surely, 2^8820402849 is an apocalyptic number.

It is an amenable number.

8820402849 is a deficient number, since it is larger than the sum of its proper divisors (4246860671).

8820402849 is a wasteful number, since it uses less digits than its factorization.

8820402849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326681596 (or 326681590 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 8820402849 is about 93916.9997870460. Note that the first 3 decimals coincide. The cubic root of 8820402849 is about 2066.1545641871.

The spelling of 8820402849 in words is "eight billion, eight hundred twenty million, four hundred two thousand, eight hundred forty-nine".