8449809490 has 16 divisors (see below), whose sum is σ = 15467448960. Its totient is φ = 3322636720.

The previous prime is 8449809479. The next prime is 8449809493. The reversal of 8449809490 is 949089448.

It is not an unprimeable number, because it can be changed into a prime (8449809493) 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, 7160266 + ... + 7161445.

It is an arithmetic number, because the mean of its divisors is an integer number (966715560).

Almost surely, 2^8449809490 is an apocalyptic number.

8449809490 is a deficient number, since it is larger than the sum of its proper divisors (7017639470).

8449809490 is a wasteful number, since it uses less digits than its factorization.

8449809490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14321777.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The square root of 8449809490 is about 91922.8453106191. The cubic root of 8449809490 is about 2036.8027490639.

The spelling of 8449809490 in words is "eight billion, four hundred forty-nine million, eight hundred nine thousand, four hundred ninety".