2309385505 has 32 divisors (see below), whose sum is σ = 3201776640. Its totient is φ = 1566371520.

The previous prime is 2309385499. The next prime is 2309385509. The reversal of 2309385505 is 5055839032.

It is not a de Polignac number, because 2309385505 - 2³ = 2309385497 is a prime.

It is a super-2 number, since 2×2309385505² = 10666522821408210050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2309385509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1321042 + ... + 1322788.

It is an arithmetic number, because the mean of its divisors is an integer number (100055520).

Almost surely, 2^2309385505 is an apocalyptic number.

It is an amenable number.

2309385505 is a deficient number, since it is larger than the sum of its proper divisors (892391135).

2309385505 is a wasteful number, since it uses less digits than its factorization.

2309385505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 2309385505 is about 48056.0662663935. The cubic root of 2309385505 is about 1321.7991812911.

The spelling of 2309385505 in words is "two billion, three hundred nine million, three hundred eighty-five thousand, five hundred five".