228317475 has 24 divisors (see below), whose sum is σ = 377944560. Its totient is φ = 121621120.

The previous prime is 228317473. The next prime is 228317477. The reversal of 228317475 is 574713822.

It is an interprime number because it is at equal distance from previous prime (228317473) and next prime (228317477).

It is not a de Polignac number, because 228317475 - 2¹ = 228317473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228317473) 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, 90937 + ... + 93413.

It is an arithmetic number, because the mean of its divisors is an integer number (15747690).

Almost surely, 2^228317475 is an apocalyptic number.

228317475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228317475 is a deficient number, since it is larger than the sum of its proper divisors (149627085).

228317475 is a wasteful number, since it uses less digits than its factorization.

228317475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719 (or 3714 counting only the distinct ones).

The product of its digits is 94080, while the sum is 39.

The square root of 228317475 is about 15110.1778612960. The cubic root of 228317475 is about 611.1948942673.

The spelling of 228317475 in words is "two hundred twenty-eight million, three hundred seventeen thousand, four hundred seventy-five".