228077757 has 12 divisors (see below), whose sum is σ = 340073344. Its totient is φ = 147146760.

The previous prime is 228077747. The next prime is 228077761. The reversal of 228077757 is 757770822.

It is a happy number.

228077757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228077757 - 2⁶ = 228077693 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 (228077747) 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, 408463 + ... + 409020.

Almost surely, 2^228077757 is an apocalyptic number.

It is an amenable number.

228077757 is a deficient number, since it is larger than the sum of its proper divisors (111995587).

228077757 is a wasteful number, since it uses less digits than its factorization.

228077757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817520 (or 817517 counting only the distinct ones).

The product of its (nonzero) digits is 384160, while the sum is 45.

The square root of 228077757 is about 15102.2434426147. The cubic root of 228077757 is about 610.9809148448.

The spelling of 228077757 in words is "two hundred twenty-eight million, seventy-seven thousand, seven hundred fifty-seven".