228927261 has 8 divisors (see below), whose sum is σ = 306212800. Its totient is φ = 152129952.

The previous prime is 228927241. The next prime is 228927263. The reversal of 228927261 is 162729822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228927261 - 2²² = 224732957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228927263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120961 + ... + 122838.

It is an arithmetic number, because the mean of its divisors is an integer number (38276600).

Almost surely, 2^228927261 is an apocalyptic number.

It is an amenable number.

228927261 is a deficient number, since it is larger than the sum of its proper divisors (77285539).

228927261 is a wasteful number, since it uses less digits than its factorization.

228927261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244115.

The product of its digits is 48384, while the sum is 39.

The square root of 228927261 is about 15130.3423953326. The cubic root of 228927261 is about 611.7385331674.

The spelling of 228927261 in words is "two hundred twenty-eight million, nine hundred twenty-seven thousand, two hundred sixty-one".