2197380919 has 4 divisors (see below), whose sum is σ = 2198900944. Its totient is φ = 2195860896.

The previous prime is 2197380907. The next prime is 2197380929. The reversal of 2197380919 is 9190837912.

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

It is a cyclic number.

It is not a de Polignac number, because 2197380919 - 2⁷ = 2197380791 is a prime.

It is a super-2 number, since 2×2197380919² = 9656965806370569122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197380929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757842 + ... + 760735.

It is an arithmetic number, because the mean of its divisors is an integer number (549725236).

Almost surely, 2^2197380919 is an apocalyptic number.

2197380919 is a deficient number, since it is larger than the sum of its proper divisors (1520025).

2197380919 is a wasteful number, since it uses less digits than its factorization.

2197380919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520024.

The product of its (nonzero) digits is 244944, while the sum is 49.

The square root of 2197380919 is about 46876.2297865347. The cubic root of 2197380919 is about 1300.0751276109.

The spelling of 2197380919 in words is "two billion, one hundred ninety-seven million, three hundred eighty thousand, nine hundred nineteen".