2173227438 has 32 divisors (see below), whose sum is σ = 4383889056. Its totient is φ = 718184448.

The previous prime is 2173227401. The next prime is 2173227443. The reversal of 2173227438 is 8347223712.

It is a junction number, because it is equal to n+sod(n) for n = 2173227396 and 2173227405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 946620 + ... + 948912.

It is an arithmetic number, because the mean of its divisors is an integer number (136996533).

Almost surely, 2^2173227438 is an apocalyptic number.

2173227438 is an abundant number, since it is smaller than the sum of its proper divisors (2210661618).

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

2173227438 is a wasteful number, since it uses less digits than its factorization.

2173227438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3588.

The product of its digits is 112896, while the sum is 39.

The square root of 2173227438 is about 46617.8875325770. The cubic root of 2173227438 is about 1295.2941174406.

The spelling of 2173227438 in words is "two billion, one hundred seventy-three million, two hundred twenty-seven thousand, four hundred thirty-eight".