1968242 has 4 divisors (see below), whose sum is σ = 2952366. Its totient is φ = 984120.

The previous prime is 1968233. The next prime is 1968251. The reversal of 1968242 is 2428691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2428691 = 349 ⋅6959.

It is an interprime number because it is at equal distance from previous prime (1968233) and next prime (1968251).

It can be written as a sum of positive squares in only one way, i.e., 1585081 + 383161 = 1259^2 + 619^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1968199 and 1968208.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492059 + ... + 492062.

2^1968242 is an apocalyptic number.

1968242 is a deficient number, since it is larger than the sum of its proper divisors (984124).

1968242 is an equidigital number, since it uses as much as digits as its factorization.

1968242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984123.

The product of its digits is 6912, while the sum is 32.

The square root of 1968242 is about 1402.9404834133. The cubic root of 1968242 is about 125.3216675300.

The spelling of 1968242 in words is "one million, nine hundred sixty-eight thousand, two hundred forty-two".