229536720 has 640 divisors, whose sum is σ = 1028505600. Its totient is φ = 45785088.

The previous prime is 229536719. The next prime is 229536773. The reversal of 229536720 is 27635922.

229536720 is a `hidden beast` number, since 2 + 295 + 367 + 2 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4883737 + ... + 4883783.

It is an arithmetic number, because the mean of its divisors is an integer number (1607040).

Almost surely, 2^229536720 is an apocalyptic number.

229536720 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 229536720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514252800).

229536720 is an abundant number, since it is smaller than the sum of its proper divisors (798968880).

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

229536720 is a wasteful number, since it uses less digits than its factorization.

229536720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 229536720 is about 15150.4692996620. The cubic root of 229536720 is about 612.2809167871.

It can be divided in two parts, 2295 and 36720, that multiplied together give a square (84272400 = 9180²).

The spelling of 229536720 in words is "two hundred twenty-nine million, five hundred thirty-six thousand, seven hundred twenty".