2309857634 has 16 divisors (see below), whose sum is σ = 3994800768. Its totient is φ = 981177792.

The previous prime is 2309857621. The next prime is 2309857637. The reversal of 2309857634 is 4367589032.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2309857637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728462 + ... + 731625.

It is an arithmetic number, because the mean of its divisors is an integer number (249675048).

Almost surely, 2^2309857634 is an apocalyptic number.

2309857634 is a deficient number, since it is larger than the sum of its proper divisors (1684943134).

2309857634 is a wasteful number, since it uses less digits than its factorization.

2309857634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460209.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The square root of 2309857634 is about 48060.9782880041. The cubic root of 2309857634 is about 1321.8892510235.

The spelling of 2309857634 in words is "two billion, three hundred nine million, eight hundred fifty-seven thousand, six hundred thirty-four".