1942023 has 4 divisors (see below), whose sum is σ = 2589368. Its totient is φ = 1294680.

The previous prime is 1942021. The next prime is 1942027. The reversal of 1942023 is 3202491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3202491 = 3 ⋅1067497.

It is not a de Polignac number, because 1942023 - 2¹ = 1942021 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

1942023 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1942021) 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, 323668 + ... + 323673.

It is an arithmetic number, because the mean of its divisors is an integer number (647342).

2^1942023 is an apocalyptic number.

1942023 is a deficient number, since it is larger than the sum of its proper divisors (647345).

1942023 is an equidigital number, since it uses as much as digits as its factorization.

1942023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647344.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1942023 is about 1393.5648531733. The cubic root of 1942023 is about 124.7627071552.

The spelling of 1942023 in words is "one million, nine hundred forty-two thousand, twenty-three".