919442 has 8 divisors (see below), whose sum is σ = 1385100. Its totient is φ = 457744.

The previous prime is 919427. The next prime is 919447. The reversal of 919442 is 244919.

It can be written as a sum of positive squares in 2 ways, for example, as 758641 + 160801 = 871^2 + 401^2 .

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

It is not an unprimeable number, because it can be changed into a prime (919447) by changing a digit.

919442 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 in 3 ways as a sum of consecutive naturals, for example, 317 + ... + 1392.

2⁹¹⁹⁴⁴² is an apocalyptic number.

919442 is a deficient number, since it is larger than the sum of its proper divisors (465658).

919442 is a wasteful number, since it uses less digits than its factorization.

919442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980.

The product of its digits is 2592, while the sum is 29.

The square root of 919442 is about 958.8753829357. The cubic root of 919442 is about 97.2392154363.

The spelling of 919442 in words is "nine hundred nineteen thousand, four hundred forty-two".