1622921423 has 16 divisors (see below), whose sum is σ = 1788568320. Its totient is φ = 1465744896.

The previous prime is 1622921413. The next prime is 1622921471. The reversal of 1622921423 is 3241292261.

It is a cyclic number.

It is not a de Polignac number, because 1622921423 - 2²² = 1618727119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1622921423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622921413) 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 15 ways as a sum of consecutive naturals, for example, 128111 + ... + 140207.

It is an arithmetic number, because the mean of its divisors is an integer number (111785520).

Almost surely, 2^1622921423 is an apocalyptic number.

1622921423 is a deficient number, since it is larger than the sum of its proper divisors (165646897).

1622921423 is a wasteful number, since it uses less digits than its factorization.

1622921423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12446.

The product of its digits is 10368, while the sum is 32.

The square root of 1622921423 is about 40285.4989171042. The cubic root of 1622921423 is about 1175.1658550850.

The spelling of 1622921423 in words is "one billion, six hundred twenty-two million, nine hundred twenty-one thousand, four hundred twenty-three".