1919242 has 16 divisors (see below), whose sum is σ = 3136392. Its totient is φ = 875520.

The previous prime is 1919231. The next prime is 1919273. The reversal of 1919242 is 2429191.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 594441 + 1324801 = 771^2 + 1151^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1919242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2142 + ... + 2902.

2^1919242 is an apocalyptic number.

1919242 is a deficient number, since it is larger than the sum of its proper divisors (1217150).

1919242 is a wasteful number, since it uses less digits than its factorization.

1919242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873.

The product of its digits is 1296, while the sum is 28.

The square root of 1919242 is about 1385.3670993639. The cubic root of 1919242 is about 124.2729419586.

The spelling of 1919242 in words is "one million, nine hundred nineteen thousand, two hundred forty-two".