22043401 has 4 divisors (see below), whose sum is σ = 23203600. Its totient is φ = 20883204.

The previous prime is 22043377. The next prime is 22043419. The reversal of 22043401 is 10434022.

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 not a de Polignac number, because 22043401 - 2¹⁵ = 22010633 is a prime.

It is a super-4 number, since 4×22043401⁴ (a number of 30 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22043471) 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, 580071 + ... + 580108.

It is an arithmetic number, because the mean of its divisors is an integer number (5800900).

Almost surely, 2^22043401 is an apocalyptic number.

It is an amenable number.

22043401 is a deficient number, since it is larger than the sum of its proper divisors (1160199).

22043401 is a wasteful number, since it uses less digits than its factorization.

22043401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160198.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22043401 is about 4695.0400424278. The cubic root of 22043401 is about 280.3880715898.

Adding to 22043401 its reverse (10434022), we get a palindrome (32477423).

The spelling of 22043401 in words is "twenty-two million, forty-three thousand, four hundred one".