2197828938 has 16 divisors (see below), whose sum is σ = 4400657856. Its totient is φ = 731776320.

The previous prime is 2197828931. The next prime is 2197828949. The reversal of 2197828938 is 8398287912.

It is not an unprimeable number, because it can be changed into a prime (2197828931) 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, 202606 + ... + 213177.

It is an arithmetic number, because the mean of its divisors is an integer number (275041116).

Almost surely, 2^2197828938 is an apocalyptic number.

2197828938 is an abundant number, since it is smaller than the sum of its proper divisors (2202828918).

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

2197828938 is a wasteful number, since it uses less digits than its factorization.

2197828938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416669.

The product of its digits is 3483648, while the sum is 57.

The square root of 2197828938 is about 46881.0082869385. The cubic root of 2197828938 is about 1300.1634780607.

The spelling of 2197828938 in words is "two billion, one hundred ninety-seven million, eight hundred twenty-eight thousand, nine hundred thirty-eight".