1622168688 has 80 divisors (see below), whose sum is σ = 4795970816. Its totient is φ = 462827520.

The previous prime is 1622168687. The next prime is 1622168729. The reversal of 1622168688 is 8868612261.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622168687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269520 + ... + 275472.

Almost surely, 2^1622168688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1622168688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2397985408).

1622168688 is an abundant number, since it is smaller than the sum of its proper divisors (3173802128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1622168688 is a wasteful number, since it uses less digits than its factorization.

1622168688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6782 (or 6776 counting only the distinct ones).

The product of its digits is 442368, while the sum is 48.

The square root of 1622168688 is about 40276.1553279357. The cubic root of 1622168688 is about 1174.9841405434.

The spelling of 1622168688 in words is "one billion, six hundred twenty-two million, one hundred sixty-eight thousand, six hundred eighty-eight".