2204156423 has 4 divisors (see below), whose sum is σ = 2519035920. Its totient is φ = 1889276928.

The previous prime is 2204156399. The next prime is 2204156453. The reversal of 2204156423 is 3246514022.

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

It is not a de Polignac number, because 2204156423 - 2⁶ = 2204156359 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 (2204156453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157439738 + ... + 157439751.

It is an arithmetic number, because the mean of its divisors is an integer number (629758980).

Almost surely, 2^2204156423 is an apocalyptic number.

2204156423 is a deficient number, since it is larger than the sum of its proper divisors (314879497).

2204156423 is an equidigital number, since it uses as much as digits as its factorization.

2204156423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314879496.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 2204156423 is about 46948.4443086243. Note that the first 3 decimals coincide. The cubic root of 2204156423 is about 1301.4099934278.

The spelling of 2204156423 in words is "two billion, two hundred four million, one hundred fifty-six thousand, four hundred twenty-three".