229726401 has 16 divisors (see below), whose sum is σ = 313279296. Its totient is φ = 149700096.

The previous prime is 229726381. The next prime is 229726411. The reversal of 229726401 is 104627922.

It is a de Polignac number, because none of the positive numbers 2^k-229726401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (229726411) 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 15 ways as a sum of consecutive naturals, for example, 20106 + ... + 29388.

It is an arithmetic number, because the mean of its divisors is an integer number (19579956).

Almost surely, 2^229726401 is an apocalyptic number.

It is an amenable number.

229726401 is a deficient number, since it is larger than the sum of its proper divisors (83552895).

229726401 is a wasteful number, since it uses less digits than its factorization.

229726401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9472.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 229726401 is about 15156.7279120528. The cubic root of 229726401 is about 612.4495260920.

The spelling of 229726401 in words is "two hundred twenty-nine million, seven hundred twenty-six thousand, four hundred one".