43889622 has 64 divisors (see below), whose sum is σ = 104945664. Its totient is φ = 11975040.

The previous prime is 43889617. The next prime is 43889633. The reversal of 43889622 is 22698834.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94563 + ... + 95025.

It is an arithmetic number, because the mean of its divisors is an integer number (1639776).

Almost surely, 2^43889622 is an apocalyptic number.

43889622 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 43889622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52472832).

43889622 is an abundant number, since it is smaller than the sum of its proper divisors (61056042).

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

43889622 is a wasteful number, since it uses less digits than its factorization.

43889622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573.

The product of its digits is 165888, while the sum is 42.

The square root of 43889622 is about 6624.9243014543. The cubic root of 43889622 is about 352.7393796791.

The spelling of 43889622 in words is "forty-three million, eight hundred eighty-nine thousand, six hundred twenty-two".