919242 has 32 divisors (see below), whose sum is σ = 2116800. Its totient is φ = 295344.

The previous prime is 919231. The next prime is 919249. The reversal of 919242 is 242919.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 919242.

It is not an unprimeable number, because it can be changed into a prime (919249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1273 + ... + 1859.

It is an arithmetic number, because the mean of its divisors is an integer number (66150).

2⁹¹⁹²⁴² is an apocalyptic number.

919242 is the 783-rd pentagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 919242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1058400).

919242 is an abundant number, since it is smaller than the sum of its proper divisors (1197558).

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

919242 is a wasteful number, since it uses less digits than its factorization.

919242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627 (or 621 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 919242 is about 958.7710884252. The cubic root of 919242 is about 97.2321643287.

The spelling of 919242 in words is "nine hundred nineteen thousand, two hundred forty-two".