227128290 has 64 divisors (see below), whose sum is σ = 572002560. Its totient is φ = 57639680.

The previous prime is 227128283. The next prime is 227128303. The reversal of 227128290 is 92821722.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59932 + ... + 63608.

It is an arithmetic number, because the mean of its divisors is an integer number (8937540).

Almost surely, 2^227128290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 227128290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286001280).

227128290 is an abundant number, since it is smaller than the sum of its proper divisors (344874270).

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

227128290 is a wasteful number, since it uses less digits than its factorization.

227128290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3787.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 227128290 is about 15070.7760251422. The cubic root of 227128290 is about 610.1319162879.

The spelling of 227128290 in words is "two hundred twenty-seven million, one hundred twenty-eight thousand, two hundred ninety".