2097221439 has 8 divisors (see below), whose sum is σ = 2960783280. Its totient is φ = 1315903616.

The previous prime is 2097221431. The next prime is 2097221513. The reversal of 2097221439 is 9341227902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2097221439 - 2³ = 2097221431 is a prime.

It is a super-3 number, since 3×2097221439³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2097221397 and 2097221406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2097221431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20560944 + ... + 20561045.

It is an arithmetic number, because the mean of its divisors is an integer number (370097910).

Almost surely, 2^2097221439 is an apocalyptic number.

2097221439 is a deficient number, since it is larger than the sum of its proper divisors (863561841).

2097221439 is a wasteful number, since it uses less digits than its factorization.

2097221439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41122009.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 2097221439 is about 45795.4303288003. The cubic root of 2097221439 is about 1280.0141272448.

The spelling of 2097221439 in words is "two billion, ninety-seven million, two hundred twenty-one thousand, four hundred thirty-nine".