22401434 has 8 divisors (see below), whose sum is σ = 36656928. Its totient is φ = 10182460.

The previous prime is 22401433. The next prime is 22401473. The reversal of 22401434 is 43410422.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22401433) 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, 509102 + ... + 509145.

It is an arithmetic number, because the mean of its divisors is an integer number (4582116).

Almost surely, 2^22401434 is an apocalyptic number.

22401434 is a deficient number, since it is larger than the sum of its proper divisors (14255494).

22401434 is a wasteful number, since it uses less digits than its factorization.

22401434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018260.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 22401434 is about 4733.0153179554. The cubic root of 22401434 is about 281.8979645271.

Adding to 22401434 its reverse (43410422), we get a palindrome (65811856).

The spelling of 22401434 in words is "twenty-two million, four hundred one thousand, four hundred thirty-four".