2019534 has 32 divisors (see below), whose sum is σ = 4530816. Its totient is φ = 594720.

The previous prime is 2019533. The next prime is 2019569. The reversal of 2019534 is 4359102.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2019533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2029 + ... + 2855.

It is an arithmetic number, because the mean of its divisors is an integer number (141588).

2^2019534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2019534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2265408).

2019534 is an abundant number, since it is smaller than the sum of its proper divisors (2511282).

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

2019534 is a wasteful number, since it uses less digits than its factorization.

2019534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 2019534 is about 1421.1030926713. The cubic root of 2019534 is about 126.4009650490.

The spelling of 2019534 in words is "two million, nineteen thousand, five hundred thirty-four".