2197238772 has 12 divisors (see below), whose sum is σ = 5126890496. Its totient is φ = 732412920.

The previous prime is 2197238761. The next prime is 2197238777. The reversal of 2197238772 is 2778327912.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197238777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91551604 + ... + 91551627.

Almost surely, 2^2197238772 is an apocalyptic number.

It is an amenable number.

2197238772 is an abundant number, since it is smaller than the sum of its proper divisors (2929651724).

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

2197238772 is a wasteful number, since it uses less digits than its factorization.

2197238772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183103238 (or 183103236 counting only the distinct ones).

The product of its digits is 592704, while the sum is 48.

The square root of 2197238772 is about 46874.7135671249. The cubic root of 2197238772 is about 1300.0470933630.

The spelling of 2197238772 in words is "two billion, one hundred ninety-seven million, two hundred thirty-eight thousand, seven hundred seventy-two".