227648840 has 48 divisors (see below), whose sum is σ = 531071100. Its totient is φ = 87721088.

The previous prime is 227648809. The next prime is 227648843. The reversal of 227648840 is 48846722.

It can be written as a sum of positive squares in 2 ways, for example, as 226863844 + 784996 = 15062^2 + 886^2 .

It is not an unprimeable number, because it can be changed into a prime (227648843) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 513659 + ... + 514101.

Almost surely, 2^227648840 is an apocalyptic number.

227648840 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 227648840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265535550).

227648840 is an abundant number, since it is smaller than the sum of its proper divisors (303422260).

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

227648840 is an equidigital number, since it uses as much as digits as its factorization.

227648840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 227648840 is about 15088.0363202108. The cubic root of 227648840 is about 610.5976763230.

The spelling of 227648840 in words is "two hundred twenty-seven million, six hundred forty-eight thousand, eight hundred forty".