619242 has 32 divisors (see below), whose sum is σ = 1415232. Its totient is φ = 178944.

The previous prime is 619207. The next prime is 619247. The reversal of 619242 is 242916.

It is not an unprimeable number, because it can be changed into a prime (619247) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 1093 + ... + 1559.

It is an arithmetic number, because the mean of its divisors is an integer number (44226).

2⁶¹⁹²⁴² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 619242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (707616).

619242 is an abundant number, since it is smaller than the sum of its proper divisors (795990).

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

619242 is a wasteful number, since it uses less digits than its factorization.

619242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502.

The product of its digits is 864, while the sum is 24.

The square root of 619242 is about 786.9193097135. The cubic root of 619242 is about 85.2354257671.

It can be divided in two parts, 619 and 242, that added together give a triangular number (861 = T₄₁).

The spelling of 619242 in words is "six hundred nineteen thousand, two hundred forty-two".