228261764 has 12 divisors (see below), whose sum is σ = 405420624. Its totient is φ = 112427304.

The previous prime is 228261749. The next prime is 228261767. The reversal of 228261764 is 467162822.

It is not an unprimeable number, because it can be changed into a prime (228261767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425594 + ... + 426129.

It is an arithmetic number, because the mean of its divisors is an integer number (33785052).

Almost surely, 2^228261764 is an apocalyptic number.

It is an amenable number.

228261764 is a deficient number, since it is larger than the sum of its proper divisors (177158860).

228261764 is a wasteful number, since it uses less digits than its factorization.

228261764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851794 (or 851792 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 228261764 is about 15108.3342562971. The cubic root of 228261764 is about 611.1451783347.

It can be divided in two parts, 2282 and 61764, that added together give a palindrome (64046).

The spelling of 228261764 in words is "two hundred twenty-eight million, two hundred sixty-one thousand, seven hundred sixty-four".