227640000 has 280 divisors, whose sum is σ = 863323648. Its totient is φ = 51840000.

The previous prime is 227639989. The next prime is 227640019. The reversal of 227640000 is 46722.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (280).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 839865 + ... + 840135.

Almost surely, 2^227640000 is an apocalyptic number.

227640000 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 227640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431661824).

227640000 is an abundant number, since it is smaller than the sum of its proper divisors (635683648).

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

227640000 is an equidigital number, since it uses as much as digits as its factorization.

227640000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 227640000 is about 15087.7433700338. The cubic root of 227640000 is about 610.5897726978.

Adding to 227640000 its reverse (46722), we get a palindrome (227686722).

The spelling of 227640000 in words is "two hundred twenty-seven million, six hundred forty thousand".