2009449036 has 48 divisors (see below), whose sum is σ = 4108104000. Its totient is φ = 859684224.

The previous prime is 2009449019. The next prime is 2009449037. The reversal of 2009449036 is 6309449002.

It is a junction number, because it is equal to n+sod(n) for n = 2009448986 and 2009449004.

It is not an unprimeable number, because it can be changed into a prime (2009449037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1174950 + ... + 1176658.

It is an arithmetic number, because the mean of its divisors is an integer number (85585500).

Almost surely, 2^2009449036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2009449036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2054052000).

2009449036 is an abundant number, since it is smaller than the sum of its proper divisors (2098654964).

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

2009449036 is a wasteful number, since it uses less digits than its factorization.

2009449036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591 (or 2575 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 2009449036 is about 44826.8784994003. The cubic root of 2009449036 is about 1261.9021065430.

The spelling of 2009449036 in words is "two billion, nine million, four hundred forty-nine thousand, thirty-six".