1622443446 has 72 divisors (see below), whose sum is σ = 3931518864. Its totient is φ = 499160880.

The previous prime is 1622443439. The next prime is 1622443447. The reversal of 1622443446 is 6443442261.

1622443446 is a `hidden beast` number, since 162 + 24 + 434 + 46 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1622443446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622443447) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 165831 + ... + 175341.

Almost surely, 2^1622443446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1622443446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1965759432).

1622443446 is an abundant number, since it is smaller than the sum of its proper divisors (2309075418).

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

1622443446 is an frugal number, since it uses more digits than its factorization.

1622443446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9550 (or 9529 counting only the distinct ones).

The product of its digits is 110592, while the sum is 36.

The square root of 1622443446 is about 40279.5661098776. The cubic root of 1622443446 is about 1175.0504752121.

The spelling of 1622443446 in words is "one billion, six hundred twenty-two million, four hundred forty-three thousand, four hundred forty-six".