228536469 has 24 divisors (see below), whose sum is σ = 377986752. Its totient is φ = 130343040.

The previous prime is 228536467. The next prime is 228536471. The reversal of 228536469 is 964635822.

228536469 is a `hidden beast` number, since 2 + 285 + 364 + 6 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (228536467) and next prime (228536471).

It is not a de Polignac number, because 228536469 - 2¹ = 228536467 is a prime.

It is a super-2 number, since 2×228536469² = 104457835325975922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228536467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32797 + ... + 39149.

It is an arithmetic number, because the mean of its divisors is an integer number (15749448).

Almost surely, 2^228536469 is an apocalyptic number.

It is an amenable number.

228536469 is a deficient number, since it is larger than the sum of its proper divisors (149450283).

228536469 is a wasteful number, since it uses less digits than its factorization.

228536469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6937 (or 6934 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 228536469 is about 15117.4226970076. The cubic root of 228536469 is about 611.3902439566.

The spelling of 228536469 in words is "two hundred twenty-eight million, five hundred thirty-six thousand, four hundred sixty-nine".