619042 has 4 divisors (see below), whose sum is σ = 928566. Its totient is φ = 309520.

The previous prime is 619033. The next prime is 619057. The reversal of 619042 is 240916.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 534361 + 84681 = 731^2 + 291^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 16.

It is an unprimeable number.

619042 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154759 + ... + 154762.

2⁶¹⁹⁰⁴² is an apocalyptic number.

619042 is a deficient number, since it is larger than the sum of its proper divisors (309524).

619042 is a wasteful number, since it uses less digits than its factorization.

619042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309523.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 619042 is about 786.7922216189. The cubic root of 619042 is about 85.2262484607.

Adding to 619042 its reverse (240916), we get a palindrome (859958).

The spelling of 619042 in words is "six hundred nineteen thousand, forty-two".