1622306423 has 4 divisors (see below), whose sum is σ = 1622438640. Its totient is φ = 1622174208.

The previous prime is 1622306417. The next prime is 1622306437. The reversal of 1622306423 is 3246032261.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1622306423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622306453) 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, 45578 + ... + 72951.

It is an arithmetic number, because the mean of its divisors is an integer number (405609660).

Almost surely, 2^1622306423 is an apocalyptic number.

1622306423 is a deficient number, since it is larger than the sum of its proper divisors (132217).

1622306423 is a wasteful number, since it uses less digits than its factorization.

1622306423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132216.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 1622306423 is about 40277.8651743113. The cubic root of 1622306423 is about 1175.0173947629.

Adding to 1622306423 its reverse (3246032261), we get a palindrome (4868338684).

The spelling of 1622306423 in words is "one billion, six hundred twenty-two million, three hundred six thousand, four hundred twenty-three".