228131770 has 16 divisors (see below), whose sum is σ = 420187680. Its totient is φ = 89130384.

The previous prime is 228131767. The next prime is 228131801. The reversal of 228131770 is 77131822.

228131770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264840 + ... + 265699.

It is an arithmetic number, because the mean of its divisors is an integer number (26261730).

Almost surely, 2^228131770 is an apocalyptic number.

228131770 is a deficient number, since it is larger than the sum of its proper divisors (192055910).

228131770 is a wasteful number, since it uses less digits than its factorization.

228131770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530589.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 228131770 is about 15104.0315810051. The cubic root of 228131770 is about 611.0291415371.

The spelling of 228131770 in words is "two hundred twenty-eight million, one hundred thirty-one thousand, seven hundred seventy".