2197388 has 24 divisors (see below), whose sum is σ = 4191600. Its totient is φ = 1003968.

The previous prime is 2197387. The next prime is 2197409. The reversal of 2197388 is 8837912.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (2197381) 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, 1706 + ... + 2702.

It is an arithmetic number, because the mean of its divisors is an integer number (174650).

2^2197388 is an apocalyptic number.

It is an amenable number.

2197388 is a deficient number, since it is larger than the sum of its proper divisors (1994212).

2197388 is a wasteful number, since it uses less digits than its factorization.

2197388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049 (or 1047 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 2197388 is about 1482.3589308936. The cubic root of 2197388 is about 130.0076524095.

The spelling of 2197388 in words is "two million, one hundred ninety-seven thousand, three hundred eighty-eight".