1622220800 has 126 divisors (see below), whose sum is σ = 4068570603. Its totient is φ = 641597440.

The previous prime is 1622220791. The next prime is 1622220811. The reversal of 1622220800 is 80222261.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 152571904 + 1469648896 = 12352^2 + 38336^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=28480.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18227156 + ... + 18227244.

Almost surely, 2^1622220800 is an apocalyptic number.

1622220800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1622220800

1622220800 is an abundant number, since it is smaller than the sum of its proper divisors (2446349803).

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

1622220800 is an frugal number, since it uses more digits than its factorization.

1622220800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1622220800 is about 40276.8022563857. The cubic root of 1622220800 is about 1174.9967224897.

The spelling of 1622220800 in words is "one billion, six hundred twenty-two million, two hundred twenty thousand, eight hundred".