228523659 has 48 divisors (see below), whose sum is σ = 397036800. Its totient is φ = 114162048.

The previous prime is 228523657. The next prime is 228523663. The reversal of 228523659 is 956325822.

It is not a de Polignac number, because 228523659 - 2¹ = 228523657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228523659.

It is not an unprimeable number, because it can be changed into a prime (228523657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65737 + ... + 69125.

It is an arithmetic number, because the mean of its divisors is an integer number (8271600).

Almost surely, 2^228523659 is an apocalyptic number.

228523659 is a deficient number, since it is larger than the sum of its proper divisors (168513141).

228523659 is a wasteful number, since it uses less digits than its factorization.

228523659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3444 (or 3431 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The square root of 228523659 is about 15116.9990077396. Note that the first 3 decimals coincide. The cubic root of 228523659 is about 611.3788204620.

The spelling of 228523659 in words is "two hundred twenty-eight million, five hundred twenty-three thousand, six hundred fifty-nine".