2023018642 has 4 divisors (see below), whose sum is σ = 3034527966. Its totient is φ = 1011509320.

The previous prime is 2023018619. The next prime is 2023018661. The reversal of 2023018642 is 2468103202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2468103202 = 2 ⋅1234051601.

It can be written as a sum of positive squares in only one way, i.e., 1351224081 + 671794561 = 36759^2 + 25919^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2023018642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505754659 + ... + 505754662.

Almost surely, 2^2023018642 is an apocalyptic number.

2023018642 is a deficient number, since it is larger than the sum of its proper divisors (1011509324).

2023018642 is a wasteful number, since it uses less digits than its factorization.

2023018642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011509323.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 2023018642 is about 44977.9795233179. The cubic root of 2023018642 is about 1264.7362356323.

The spelling of 2023018642 in words is "two billion, twenty-three million, eighteen thousand, six hundred forty-two".