22437641 has 4 divisors (see below), whose sum is σ = 22818000. Its totient is φ = 22057284.

The previous prime is 22437629. The next prime is 22437661. The reversal of 22437641 is 14673422.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14673422 = 2 ⋅7336711.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22437641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22437661) 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 3 ways as a sum of consecutive naturals, for example, 190091 + ... + 190208.

It is an arithmetic number, because the mean of its divisors is an integer number (5704500).

Almost surely, 2^22437641 is an apocalyptic number.

It is an amenable number.

22437641 is a deficient number, since it is larger than the sum of its proper divisors (380359).

22437641 is an equidigital number, since it uses as much as digits as its factorization.

22437641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380358.

The product of its digits is 8064, while the sum is 29.

The square root of 22437641 is about 4736.8387137415. The cubic root of 22437641 is about 282.0497581665.

The spelling of 22437641 in words is "twenty-two million, four hundred thirty-seven thousand, six hundred forty-one".