1809930064 has 20 divisors (see below), whose sum is σ = 3510583840. Its totient is φ = 903972960.

The previous prime is 1809930061. The next prime is 1809930091. The reversal of 1809930064 is 4600399081.

It is a junction number, because it is equal to n+sod(n) for n = 1809929999 and 1809930026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1809930061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46842 + ... + 76249.

It is an arithmetic number, because the mean of its divisors is an integer number (175529192).

Almost surely, 2^1809930064 is an apocalyptic number.

It is an amenable number.

1809930064 is a deficient number, since it is larger than the sum of its proper divisors (1700653776).

1809930064 is a wasteful number, since it uses less digits than its factorization.

1809930064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124018 (or 124012 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 1809930064 is about 42543.2728407207. The cubic root of 1809930064 is about 1218.6732113653.

The spelling of 1809930064 in words is "one billion, eight hundred nine million, nine hundred thirty thousand, sixty-four".