22643941 has 4 divisors (see below), whose sum is σ = 22693312. Its totient is φ = 22594572.

The previous prime is 22643921. The next prime is 22643969. The reversal of 22643941 is 14934622.

It is a happy number.

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 22643941 - 2⁵ = 22643909 is a prime.

It is a super-2 number, since 2×22643941² = 1025496128022962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22643921) 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, 23991 + ... + 24916.

It is an arithmetic number, because the mean of its divisors is an integer number (5673328).

Almost surely, 2^22643941 is an apocalyptic number.

It is an amenable number.

22643941 is a deficient number, since it is larger than the sum of its proper divisors (49371).

22643941 is an equidigital number, since it uses as much as digits as its factorization.

22643941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49370.

The product of its digits is 10368, while the sum is 31.

The square root of 22643941 is about 4758.5650147917. The cubic root of 22643941 is about 282.9115457303.

The spelling of 22643941 in words is "twenty-two million, six hundred forty-three thousand, nine hundred forty-one".