1916542 has 8 divisors (see below), whose sum is σ = 2914416. Its totient is φ = 945072.

The previous prime is 1916539. The next prime is 1916543. The reversal of 1916542 is 2456191.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1916542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6418 + ... + 6709.

It is an arithmetic number, because the mean of its divisors is an integer number (364302).

2^1916542 is an apocalyptic number.

1916542 is a deficient number, since it is larger than the sum of its proper divisors (997874).

1916542 is a wasteful number, since it uses less digits than its factorization.

1916542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13202.

The product of its digits is 2160, while the sum is 28.

The square root of 1916542 is about 1384.3922854451. The cubic root of 1916542 is about 124.2146386612.

It can be divided in two parts, 19 and 16542, that added together give a palindrome (16561).

The spelling of 1916542 in words is "one million, nine hundred sixteen thousand, five hundred forty-two".