229722401 has 4 divisors (see below), whose sum is σ = 233488404. Its totient is φ = 225956400.

The previous prime is 229722397. The next prime is 229722403. The reversal of 229722401 is 104227922.

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 23512801 + 206209600 = 4849^2 + 14360^2 .

It is a cyclic number.

It is not a de Polignac number, because 229722401 - 2² = 229722397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229722403) 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, 1882910 + ... + 1883031.

It is an arithmetic number, because the mean of its divisors is an integer number (58372101).

Almost surely, 2^229722401 is an apocalyptic number.

It is an amenable number.

229722401 is a deficient number, since it is larger than the sum of its proper divisors (3766003).

229722401 is an equidigital number, since it uses as much as digits as its factorization.

229722401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3766002.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 229722401 is about 15156.5959568763. The cubic root of 229722401 is about 612.4459714109.

The spelling of 229722401 in words is "two hundred twenty-nine million, seven hundred twenty-two thousand, four hundred one".