2195970838 has 4 divisors (see below), whose sum is σ = 3293956260. Its totient is φ = 1097985418.

The previous prime is 2195970823. The next prime is 2195970841. The reversal of 2195970838 is 8380795912.

2195970838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548992708 + ... + 548992711.

It is an arithmetic number, because the mean of its divisors is an integer number (823489065).

Almost surely, 2^2195970838 is an apocalyptic number.

2195970838 is a deficient number, since it is larger than the sum of its proper divisors (1097985422).

2195970838 is a wasteful number, since it uses less digits than its factorization.

2195970838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097985421.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The square root of 2195970838 is about 46861.1869034492. The cubic root of 2195970838 is about 1299.7969777629.

The spelling of 2195970838 in words is "two billion, one hundred ninety-five million, nine hundred seventy thousand, eight hundred thirty-eight".