227166720 has 160 divisors (see below), whose sum is σ = 792538560. Its totient is φ = 55050240.

The previous prime is 227166713. The next prime is 227166757. The reversal of 227166720 is 27661722.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83136 + ... + 85824.

It is an arithmetic number, because the mean of its divisors is an integer number (4953366).

Almost surely, 2^227166720 is an apocalyptic number.

227166720 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 227166720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396269280).

227166720 is an abundant number, since it is smaller than the sum of its proper divisors (565371840).

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

227166720 is a wasteful number, since it uses less digits than its factorization.

227166720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726 (or 2710 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 227166720 is about 15072.0509553279. The cubic root of 227166720 is about 610.1663256919.

The spelling of 227166720 in words is "two hundred twenty-seven million, one hundred sixty-six thousand, seven hundred twenty".