228733307 has 4 divisors (see below), whose sum is σ = 249527256. Its totient is φ = 207939360.

The previous prime is 228733303. The next prime is 228733333. The reversal of 228733307 is 703337822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228733307 - 2² = 228733303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228733303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10396958 + ... + 10396979.

It is an arithmetic number, because the mean of its divisors is an integer number (62381814).

Almost surely, 2^228733307 is an apocalyptic number.

228733307 is a deficient number, since it is larger than the sum of its proper divisors (20793949).

228733307 is a wasteful number, since it uses less digits than its factorization.

228733307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20793948.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 228733307 is about 15123.9315986287. The cubic root of 228733307 is about 611.5657233144.

The spelling of 228733307 in words is "two hundred twenty-eight million, seven hundred thirty-three thousand, three hundred seven".