1909094064 has 80 divisors (see below), whose sum is σ = 5029797120. Its totient is φ = 623796480.

The previous prime is 1909094063. The next prime is 1909094113. The reversal of 1909094064 is 4604909091.

1909094064 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1909094063) 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, 1015077 + ... + 1016955.

It is an arithmetic number, because the mean of its divisors is an integer number (62872464).

Almost surely, 2^1909094064 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 1909094064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2514898560).

1909094064 is an abundant number, since it is smaller than the sum of its proper divisors (3120703056).

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

1909094064 is a wasteful number, since it uses less digits than its factorization.

1909094064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298 (or 2292 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 1909094064 is about 43693.1809782717. The cubic root of 1909094064 is about 1240.5352493273.

The spelling of 1909094064 in words is "one billion, nine hundred nine million, ninety-four thousand, sixty-four".