2309938155 has 240 divisors, whose sum is σ = 5255845056. Its totient is φ = 963809280.

The previous prime is 2309938133. The next prime is 2309938159. The reversal of 2309938155 is 5518399032.

It is not a de Polignac number, because 2309938155 - 2²⁸ = 2041502699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2309938155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2309938159) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 13831882 + ... + 13832048.

Almost surely, 2^2309938155 is an apocalyptic number.

2309938155 is an abundant number, since it is smaller than the sum of its proper divisors (2945906901).

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

2309938155 is a wasteful number, since it uses less digits than its factorization.

2309938155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 2309938155 is about 48061.8159769270. The cubic root of 2309938155 is about 1321.9046110765.

The spelling of 2309938155 in words is "two billion, three hundred nine million, nine hundred thirty-eight thousand, one hundred fifty-five".