228861382 has 4 divisors (see below), whose sum is σ = 343292076. Its totient is φ = 114430690.

The previous prime is 228861371. The next prime is 228861383. The reversal of 228861382 is 283168822.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228861383) 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 as a sum of consecutive naturals, namely, 57215344 + ... + 57215347.

It is an arithmetic number, because the mean of its divisors is an integer number (85823019).

Almost surely, 2^228861382 is an apocalyptic number.

228861382 is a deficient number, since it is larger than the sum of its proper divisors (114430694).

228861382 is a wasteful number, since it uses less digits than its factorization.

228861382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114430693.

The product of its digits is 73728, while the sum is 40.

The square root of 228861382 is about 15128.1651894736. The cubic root of 228861382 is about 611.6798470020.

The spelling of 228861382 in words is "two hundred twenty-eight million, eight hundred sixty-one thousand, three hundred eighty-two".