1900744223 has 4 divisors (see below), whose sum is σ = 2172279120. Its totient is φ = 1629209328.

The previous prime is 1900744213. The next prime is 1900744231. The reversal of 1900744223 is 3224470091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3224470091 = 2887 ⋅1116893.

It is a cyclic number.

It is not a de Polignac number, because 1900744223 - 2⁶ = 1900744159 is a prime.

It is a super-2 number, since 2×1900744223² = 7225657202535747458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1900744223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900744213) 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, 135767438 + ... + 135767451.

It is an arithmetic number, because the mean of its divisors is an integer number (543069780).

Almost surely, 2^1900744223 is an apocalyptic number.

1900744223 is a deficient number, since it is larger than the sum of its proper divisors (271534897).

1900744223 is an equidigital number, since it uses as much as digits as its factorization.

1900744223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271534896.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 1900744223 is about 43597.5254228953. The cubic root of 1900744223 is about 1238.7240219544.

The spelling of 1900744223 in words is "one billion, nine hundred million, seven hundred forty-four thousand, two hundred twenty-three".