43622661 has 8 divisors (see below), whose sum is σ = 58198624. Its totient is φ = 29064240.

The previous prime is 43622659. The next prime is 43622671. The reversal of 43622661 is 16622634.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43622661 - 2¹ = 43622659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43622671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3390 + ... + 9936.

It is an arithmetic number, because the mean of its divisors is an integer number (7274828).

Almost surely, 2^43622661 is an apocalyptic number.

It is an amenable number.

43622661 is a deficient number, since it is larger than the sum of its proper divisors (14575963).

43622661 is a wasteful number, since it uses less digits than its factorization.

43622661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8771.

The product of its digits is 10368, while the sum is 30.

The square root of 43622661 is about 6604.7453395267. The cubic root of 43622661 is about 352.0227392550.

The spelling of 43622661 in words is "forty-three million, six hundred twenty-two thousand, six hundred sixty-one".