1942219 has 4 divisors (see below), whose sum is σ = 1950520. Its totient is φ = 1933920.

The previous prime is 1942207. The next prime is 1942273. The reversal of 1942219 is 9122491.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9122491 = 7 ⋅1303213.

It is a cyclic number.

It is not a de Polignac number, because 1942219 - 2⁷ = 1942091 is a prime.

It is a super-2 number, since 2×1942219² = 7544429287922, which contains 22 as substring.

It is a Duffinian number.

1942219 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1942319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3789 + ... + 4270.

It is an arithmetic number, because the mean of its divisors is an integer number (487630).

2^1942219 is an apocalyptic number.

1942219 is a deficient number, since it is larger than the sum of its proper divisors (8301).

1942219 is an equidigital number, since it uses as much as digits as its factorization.

1942219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8300.

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

The square root of 1942219 is about 1393.6351746422. The cubic root of 1942219 is about 124.7669042679.

The spelling of 1942219 in words is "one million, nine hundred forty-two thousand, two hundred nineteen".