1622428567 has 4 divisors (see below), whose sum is σ = 1622649456. Its totient is φ = 1622207680.

The previous prime is 1622428559. The next prime is 1622428573. The reversal of 1622428567 is 7658242261.

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 1622428567 - 2³ = 1622428559 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 (1622428537) 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, 99034 + ... + 114247.

It is an arithmetic number, because the mean of its divisors is an integer number (405662364).

Almost surely, 2^1622428567 is an apocalyptic number.

1622428567 is a deficient number, since it is larger than the sum of its proper divisors (220889).

1622428567 is an equidigital number, since it uses as much as digits as its factorization.

1622428567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220888.

The product of its digits is 322560, while the sum is 43.

The square root of 1622428567 is about 40279.3814128271. The cubic root of 1622428567 is about 1175.0468831753.

The spelling of 1622428567 in words is "one billion, six hundred twenty-two million, four hundred twenty-eight thousand, five hundred sixty-seven".