22401353 has 8 divisors (see below), whose sum is σ = 24347400. Its totient is φ = 20487168.

The previous prime is 22401349. The next prime is 22401371. The reversal of 22401353 is 35310422.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 64 + 22401289 = 8^2 + 4733^2 .

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

It is not a de Polignac number, because 22401353 - 2² = 22401349 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22401853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6488 + ... + 9321.

It is an arithmetic number, because the mean of its divisors is an integer number (3043425).

Almost surely, 2^22401353 is an apocalyptic number.

It is an amenable number.

22401353 is a deficient number, since it is larger than the sum of its proper divisors (1946047).

22401353 is a wasteful number, since it uses less digits than its factorization.

22401353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15931.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 22401353 is about 4733.0067610347. The cubic root of 22401353 is about 281.8976247607.

Adding to 22401353 its reverse (35310422), we get a palindrome (57711775).

The spelling of 22401353 in words is "twenty-two million, four hundred one thousand, three hundred fifty-three".