1889272 has 32 divisors (see below), whose sum is σ = 4417920. Its totient is φ = 735840.

The previous prime is 1889267. The next prime is 1889273. The reversal of 1889272 is 2729881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1889273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 918 + ... + 2149.

It is an arithmetic number, because the mean of its divisors is an integer number (138060).

2^1889272 is an apocalyptic number.

It is an amenable number.

1889272 is an abundant number, since it is smaller than the sum of its proper divisors (2528648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1889272 is a wasteful number, since it uses less digits than its factorization.

1889272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3091 (or 3087 counting only the distinct ones).

The product of its digits is 16128, while the sum is 37.

The square root of 1889272 is about 1374.5079119452. The cubic root of 1889272 is about 123.6226823752.

The spelling of 1889272 in words is "one million, eight hundred eighty-nine thousand, two hundred seventy-two".