1889013 has 16 divisors (see below), whose sum is σ = 3004416. Its totient is φ = 1032240.

The previous prime is 1889011. The next prime is 1889029. The reversal of 1889013 is 3109881.

It is not a de Polignac number, because 1889013 - 2¹ = 1889011 is a prime.

It is a super-2 number, since 2×1889013² = 7136740228338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1889011) 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 15 ways as a sum of consecutive naturals, for example, 1473 + ... + 2438.

It is an arithmetic number, because the mean of its divisors is an integer number (187776).

2^1889013 is an apocalyptic number.

It is an amenable number.

1889013 is a deficient number, since it is larger than the sum of its proper divisors (1115403).

1889013 is a wasteful number, since it uses less digits than its factorization.

1889013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3944.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1889013 is about 1374.4136931798. The cubic root of 1889013 is about 123.6170329790.

The spelling of 1889013 in words is "one million, eight hundred eighty-nine thousand, thirteen".