1622042423 has 4 divisors (see below), whose sum is σ = 1622537400. Its totient is φ = 1621547448.

The previous prime is 1622042381. The next prime is 1622042441. The reversal of 1622042423 is 3242402261.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1622042423 - 2¹⁴ = 1622026039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1622042392 and 1622042401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622048423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242540 + ... + 249137.

It is an arithmetic number, because the mean of its divisors is an integer number (405634350).

Almost surely, 2^1622042423 is an apocalyptic number.

1622042423 is a deficient number, since it is larger than the sum of its proper divisors (494977).

1622042423 is an equidigital number, since it uses as much as digits as its factorization.

1622042423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494976.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 1622042423 is about 40274.5878067051. The cubic root of 1622042423 is about 1174.9536539438.

Adding to 1622042423 its reverse (3242402261), we get a palindrome (4864444684).

The spelling of 1622042423 in words is "one billion, six hundred twenty-two million, forty-two thousand, four hundred twenty-three".