2190223279 has 4 divisors (see below), whose sum is σ = 2211908760. Its totient is φ = 2168537800.

The previous prime is 2190223249. The next prime is 2190223303. The reversal of 2190223279 is 9723220912.

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 2190223279 - 2⁷ = 2190223151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190223229) 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, 10842589 + ... + 10842790.

It is an arithmetic number, because the mean of its divisors is an integer number (552977190).

Almost surely, 2^2190223279 is an apocalyptic number.

2190223279 is a deficient number, since it is larger than the sum of its proper divisors (21685481).

2190223279 is a wasteful number, since it uses less digits than its factorization.

2190223279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21685480.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 2190223279 is about 46799.8213564967. The cubic root of 2190223279 is about 1298.6619919842.

The spelling of 2190223279 in words is "two billion, one hundred ninety million, two hundred twenty-three thousand, two hundred seventy-nine".