229788431 has 8 divisors (see below), whose sum is σ = 243241680. Its totient is φ = 216703872.

The previous prime is 229788407. The next prime is 229788457. The reversal of 229788431 is 134887922.

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

It is a cyclic number.

It is not a de Polignac number, because 229788431 - 2¹⁸ = 229526287 is a prime.

It is a super-2 number, since 2×229788431² = 105605446042883522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229788401) 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, 90890 + ... + 93383.

It is an arithmetic number, because the mean of its divisors is an integer number (30405210).

Almost surely, 2^229788431 is an apocalyptic number.

229788431 is a deficient number, since it is larger than the sum of its proper divisors (13453249).

229788431 is a wasteful number, since it uses less digits than its factorization.

229788431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184345.

The product of its digits is 193536, while the sum is 44.

The square root of 229788431 is about 15158.7740599298. The cubic root of 229788431 is about 612.5046450293.

The spelling of 229788431 in words is "two hundred twenty-nine million, seven hundred eighty-eight thousand, four hundred thirty-one".