3509494784 has 44 divisors (see below), whose sum is σ = 7114520448. Its totient is φ = 1729996800.

The previous prime is 3509494777. The next prime is 3509494787. The reversal of 3509494784 is 4874949053.

It is not an unprimeable number, because it can be changed into a prime (3509494787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48569 + ... + 96839.

Almost surely, 2^3509494784 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 3509494784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3557260224).

3509494784 is an abundant number, since it is smaller than the sum of its proper divisors (3605025664).

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

3509494784 is an equidigital number, since it uses as much as digits as its factorization.

3509494784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48362 (or 48344 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 53.

The square root of 3509494784 is about 59240.9890531885. The cubic root of 3509494784 is about 1519.6661870833. Note that the first 3 decimals are identical.

The spelling of 3509494784 in words is "three billion, five hundred nine million, four hundred ninety-four thousand, seven hundred eighty-four".