22143629 has 4 divisors (see below), whose sum is σ = 22174176. Its totient is φ = 22113084.

The previous prime is 22143587. The next prime is 22143631. The reversal of 22143629 is 92634122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22143629 - 2¹⁶ = 22078093 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 (22143689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14159 + ... + 15644.

It is an arithmetic number, because the mean of its divisors is an integer number (5543544).

Almost surely, 2^22143629 is an apocalyptic number.

It is an amenable number.

22143629 is a deficient number, since it is larger than the sum of its proper divisors (30547).

22143629 is an equidigital number, since it uses as much as digits as its factorization.

22143629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30546.

The product of its digits is 5184, while the sum is 29.

The square root of 22143629 is about 4705.7017542552. The cubic root of 22143629 is about 280.8123898086.

The spelling of 22143629 in words is "twenty-two million, one hundred forty-three thousand, six hundred twenty-nine".