229981429 has 4 divisors (see below), whose sum is σ = 232565580. Its totient is φ = 227397280.

The previous prime is 229981421. The next prime is 229981441. The reversal of 229981429 is 924189922.

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 96000804 + 133980625 = 9798^2 + 11575^2 .

It is a cyclic number.

It is not a de Polignac number, because 229981429 - 2³ = 229981421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229981421) 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, 1291942 + ... + 1292119.

It is an arithmetic number, because the mean of its divisors is an integer number (58141395).

Almost surely, 2^229981429 is an apocalyptic number.

It is an amenable number.

229981429 is a deficient number, since it is larger than the sum of its proper divisors (2584151).

229981429 is an equidigital number, since it uses as much as digits as its factorization.

229981429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2584150.

The product of its digits is 186624, while the sum is 46.

The square root of 229981429 is about 15165.1386080049. The cubic root of 229981429 is about 612.6760767693.

The spelling of 229981429 in words is "two hundred twenty-nine million, nine hundred eighty-one thousand, four hundred twenty-nine".