619342 has 4 divisors (see below), whose sum is σ = 929016. Its totient is φ = 309670.

The previous prime is 619331. The next prime is 619363. The reversal of 619342 is 243916.

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

It is a congruent number.

It is an unprimeable number.

619342 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154834 + ... + 154837.

It is an arithmetic number, because the mean of its divisors is an integer number (232254).

2⁶¹⁹³⁴² is an apocalyptic number.

619342 is a deficient number, since it is larger than the sum of its proper divisors (309674).

619342 is a wasteful number, since it uses less digits than its factorization.

619342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309673.

The product of its digits is 1296, while the sum is 25.

The square root of 619342 is about 786.9828460646. The cubic root of 619342 is about 85.2400136793.

It can be divided in two parts, 619 and 342, that added together give a square (961 = 31²).

The spelling of 619342 in words is "six hundred nineteen thousand, three hundred forty-two".