228340757 has 16 divisors (see below), whose sum is σ = 245348352. Its totient is φ = 212021040.

The previous prime is 228340747. The next prime is 228340771. The reversal of 228340757 is 757043822.

It is a cyclic number.

It is not a de Polignac number, because 228340757 - 2⁸ = 228340501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228340757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228340747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108368 + ... + 110454.

It is an arithmetic number, because the mean of its divisors is an integer number (15334272).

Almost surely, 2^228340757 is an apocalyptic number.

It is an amenable number.

228340757 is a deficient number, since it is larger than the sum of its proper divisors (17007595).

228340757 is a wasteful number, since it uses less digits than its factorization.

228340757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 228340757 is about 15110.9482495309. The cubic root of 228340757 is about 611.2156684925.

The spelling of 228340757 in words is "two hundred twenty-eight million, three hundred forty thousand, seven hundred fifty-seven".