1622746080 has 144 divisors (see below), whose sum is σ = 5548181184. Its totient is φ = 431907840.

The previous prime is 1622746079. The next prime is 1622746087. The reversal of 1622746080 is 806472261.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622746087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1311222 + ... + 1312458.

It is an arithmetic number, because the mean of its divisors is an integer number (38529036).

Almost surely, 2^1622746080 is an apocalyptic number.

1622746080 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 1622746080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2774090592).

1622746080 is an abundant number, since it is smaller than the sum of its proper divisors (3925435104).

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

1622746080 is a wasteful number, since it uses less digits than its factorization.

1622746080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169 (or 2158 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1622746080 is about 40283.3226037774. The cubic root of 1622746080 is about 1175.1235313008.

The spelling of 1622746080 in words is "one billion, six hundred twenty-two million, seven hundred forty-six thousand, eighty".