22032401 has 4 divisors (see below), whose sum is σ = 22227492. Its totient is φ = 21837312.

The previous prime is 22032377. The next prime is 22032449. The reversal of 22032401 is 10423022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7706176 + 14326225 = 2776^2 + 3785^2 .

It is a cyclic number.

It is not a de Polignac number, because 22032401 - 2⁶ = 22032337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22032601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97376 + ... + 97601.

It is an arithmetic number, because the mean of its divisors is an integer number (5556873).

Almost surely, 2^22032401 is an apocalyptic number.

It is an amenable number.

22032401 is a deficient number, since it is larger than the sum of its proper divisors (195091).

22032401 is a wasteful number, since it uses less digits than its factorization.

22032401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195090.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 22032401 is about 4693.8684472405. The cubic root of 22032401 is about 280.3414244933.

Adding to 22032401 its reverse (10423022), we get a palindrome (32455423).

The spelling of 22032401 in words is "twenty-two million, thirty-two thousand, four hundred one".