228942575 has 18 divisors (see below), whose sum is σ = 296701992. Its totient is φ = 174913200.

The previous prime is 228942541. The next prime is 228942589. The reversal of 228942575 is 575249822.

It is a de Polignac number, because none of the positive numbers 2^k-228942575 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 362510 + ... + 363140.

It is an arithmetic number, because the mean of its divisors is an integer number (16483444).

Almost surely, 2^228942575 is an apocalyptic number.

228942575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228942575 is a deficient number, since it is larger than the sum of its proper divisors (67759417).

228942575 is an frugal number, since it uses more digits than its factorization.

228942575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295 (or 659 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The square root of 228942575 is about 15130.8484560516. The cubic root of 228942575 is about 611.7521735336.

The spelling of 228942575 in words is "two hundred twenty-eight million, nine hundred forty-two thousand, five hundred seventy-five".