619842 has 8 divisors (see below), whose sum is σ = 1239696. Its totient is φ = 206612.

The previous prime is 619841. The next prime is 619849. The reversal of 619842 is 248916.

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

619842 is an admirable number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (619841) 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, 51648 + ... + 51659.

It is an arithmetic number, because the mean of its divisors is an integer number (154962).

2⁶¹⁹⁸⁴² is an apocalyptic number.

619842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

619842 is a wasteful number, since it uses less digits than its factorization.

619842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103312.

The product of its digits is 3456, while the sum is 30.

The square root of 619842 is about 787.3004509080. The cubic root of 619842 is about 85.2629458357.

The spelling of 619842 in words is "six hundred nineteen thousand, eight hundred forty-two".