229299840 has 576 divisors, whose sum is σ = 1015822080. Its totient is φ = 46632960.

The previous prime is 229299827. The next prime is 229299853. The reversal of 229299840 is 48992922.

It is an interprime number because it is at equal distance from previous prime (229299827) and next prime (229299853).

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 4878697 + ... + 4878743.

It is an arithmetic number, because the mean of its divisors is an integer number (1763580).

Almost surely, 2^229299840 is an apocalyptic number.

229299840 is a gapful number since it is divisible by the number (20) 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 229299840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (507911040).

229299840 is an abundant number, since it is smaller than the sum of its proper divisors (786522240).

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

229299840 is a wasteful number, since it uses less digits than its factorization.

229299840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 229299840 is about 15142.6497020832. The cubic root of 229299840 is about 612.0702213414.

The spelling of 229299840 in words is "two hundred twenty-nine million, two hundred ninety-nine thousand, eight hundred forty".