1889224 has 8 divisors (see below), whose sum is σ = 3542310. Its totient is φ = 944608.

The previous prime is 1889221. The next prime is 1889267. The reversal of 1889224 is 4229881.

It can be written as a sum of positive squares in only one way, i.e., 1737124 + 152100 = 1318^2 + 390^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1889224.

It is not an unprimeable number, because it can be changed into a prime (1889221) 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 as a sum of consecutive naturals, namely, 118069 + ... + 118084.

2^1889224 is an apocalyptic number.

It is an amenable number.

1889224 is a deficient number, since it is larger than the sum of its proper divisors (1653086).

1889224 is a wasteful number, since it uses less digits than its factorization.

1889224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236159 (or 236155 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The square root of 1889224 is about 1374.4904510399. The cubic root of 1889224 is about 123.6216354218.

The spelling of 1889224 in words is "one million, eight hundred eighty-nine thousand, two hundred twenty-four".