229421808 has 400 divisors, whose sum is σ = 878634240. Its totient is φ = 56453760.

The previous prime is 229421807. The next prime is 229421809. The reversal of 229421808 is 808124922.

229421808 is a `hidden beast` number, since 229 + 421 + 8 + 0 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (229421807) and next prime (229421809).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229421807) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 12074823 + ... + 12074841.

Almost surely, 2^229421808 is an apocalyptic number.

229421808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229421808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (439317120).

229421808 is an abundant number, since it is smaller than the sum of its proper divisors (649212432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

229421808 is a wasteful number, since it uses less digits than its factorization.

229421808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 229421808 is about 15146.6764671330. The cubic root of 229421808 is about 612.1787251943.

The spelling of 229421808 in words is "two hundred twenty-nine million, four hundred twenty-one thousand, eight hundred eight".