228057937 has 4 divisors (see below), whose sum is σ = 228301236. Its totient is φ = 227814640.

The previous prime is 228057901. The next prime is 228057967. The reversal of 228057937 is 739750822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 739750822 = 2 ⋅369875411.

It can be written as a sum of positive squares in 2 ways, for example, as 83192641 + 144865296 = 9121^2 + 12036^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228057937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228057893 and 228057902.

It is not an unprimeable number, because it can be changed into a prime (228057967) 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, 120238 + ... + 122119.

It is an arithmetic number, because the mean of its divisors is an integer number (57075309).

Almost surely, 2^228057937 is an apocalyptic number.

It is an amenable number.

228057937 is a deficient number, since it is larger than the sum of its proper divisors (243299).

228057937 is an equidigital number, since it uses as much as digits as its factorization.

228057937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243298.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 228057937 is about 15101.5872344598. The cubic root of 228057937 is about 610.9632162133.

The spelling of 228057937 in words is "two hundred twenty-eight million, fifty-seven thousand, nine hundred thirty-seven".