22908401 has 4 divisors (see below), whose sum is σ = 24255972. Its totient is φ = 21560832.

The previous prime is 22908397. The next prime is 22908407. The reversal of 22908401 is 10480922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10480922 = 2 ⋅5240461.

It can be written as a sum of positive squares in 2 ways, for example, as 19936225 + 2972176 = 4465^2 + 1724^2 .

It is a cyclic number.

It is not a de Polignac number, because 22908401 - 2² = 22908397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22908407) 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, 673760 + ... + 673793.

It is an arithmetic number, because the mean of its divisors is an integer number (6063993).

Almost surely, 2^22908401 is an apocalyptic number.

It is an amenable number.

22908401 is a deficient number, since it is larger than the sum of its proper divisors (1347571).

22908401 is a wasteful number, since it uses less digits than its factorization.

22908401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347570.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 22908401 is about 4786.2721401943. The cubic root of 22908401 is about 284.0086661708.

The spelling of 22908401 in words is "twenty-two million, nine hundred eight thousand, four hundred one".