619442 has 16 divisors (see below), whose sum is σ = 978432. Its totient is φ = 293760.

The previous prime is 619397. The next prime is 619471. The reversal of 619442 is 244916.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable 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 in 7 ways as a sum of consecutive naturals, for example, 5963 + ... + 6065.

It is an arithmetic number, because the mean of its divisors is an integer number (61152).

2⁶¹⁹⁴⁴² is an apocalyptic number.

619442 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

619442 is a deficient number, since it is larger than the sum of its proper divisors (358990).

619442 is a wasteful number, since it uses less digits than its factorization.

619442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233.

The product of its digits is 1728, while the sum is 26.

The square root of 619442 is about 787.0463772866. The cubic root of 619442 is about 85.2446010977.

The spelling of 619442 in words is "six hundred nineteen thousand, four hundred forty-two".