2019542 has 8 divisors (see below), whose sum is σ = 3462096. Its totient is φ = 865512.

The previous prime is 2019533. The next prime is 2019569. The reversal of 2019542 is 2459102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72113 + ... + 72140.

It is an arithmetic number, because the mean of its divisors is an integer number (432762).

2^2019542 is an apocalyptic number.

2019542 is a deficient number, since it is larger than the sum of its proper divisors (1442554).

2019542 is a wasteful number, since it uses less digits than its factorization.

2019542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144262.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2019542 is about 1421.1059073834. The cubic root of 2019542 is about 126.4011319532.

The spelling of 2019542 in words is "two million, nineteen thousand, five hundred forty-two".