2195528238 has 12 divisors (see below), whose sum is σ = 4756977888. Its totient is φ = 731842740.

The previous prime is 2195528219. The next prime is 2195528267. The reversal of 2195528238 is 8328255912.

2195528238 is a `hidden beast` number, since 2 + 1 + 95 + 528 + 2 + 38 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2195528193 and 2195528202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60986878 + ... + 60986913.

It is an arithmetic number, because the mean of its divisors is an integer number (396414824).

Almost surely, 2^2195528238 is an apocalyptic number.

2195528238 is an abundant number, since it is smaller than the sum of its proper divisors (2561449650).

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

2195528238 is a wasteful number, since it uses less digits than its factorization.

2195528238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121973799 (or 121973796 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 2195528238 is about 46856.4642071934. The cubic root of 2195528238 is about 1299.7096467919.

The spelling of 2195528238 in words is "two billion, one hundred ninety-five million, five hundred twenty-eight thousand, two hundred thirty-eight".