228084431 has 2 divisors, whose sum is σ = 228084432. Its totient is φ = 228084430.

The previous prime is 228084421. The next prime is 228084481. The reversal of 228084431 is 134480822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228084431 - 2¹⁴ = 228068047 is a prime.

It is a super-2 number, since 2×228084431² = 104045015329187522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228084401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114042215 + 114042216.

It is an arithmetic number, because the mean of its divisors is an integer number (114042216).

Almost surely, 2^228084431 is an apocalyptic number.

228084431 is a deficient number, since it is larger than the sum of its proper divisors (1).

228084431 is an equidigital number, since it uses as much as digits as its factorization.

228084431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 228084431 is about 15102.4644015472. The cubic root of 228084431 is about 610.9868742844.

The spelling of 228084431 in words is "two hundred twenty-eight million, eighty-four thousand, four hundred thirty-one".