1404172223 has 4 divisors (see below), whose sum is σ = 1438420368. Its totient is φ = 1369924080.

The previous prime is 1404172213. The next prime is 1404172229. The reversal of 1404172223 is 3222714041.

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 1404172223 - 2¹⁰ = 1404171199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1404172192 and 1404172201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404172229) 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, 17124011 + ... + 17124092.

It is an arithmetic number, because the mean of its divisors is an integer number (359605092).

Almost surely, 2^1404172223 is an apocalyptic number.

1404172223 is a deficient number, since it is larger than the sum of its proper divisors (34248145).

1404172223 is an equidigital number, since it uses as much as digits as its factorization.

1404172223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34248144.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 1404172223 is about 37472.2860658380. The cubic root of 1404172223 is about 1119.7991303775.

Adding to 1404172223 its reverse (3222714041), we get a palindrome (4626886264).

The spelling of 1404172223 in words is "one billion, four hundred four million, one hundred seventy-two thousand, two hundred twenty-three".