228801586 has 16 divisors (see below), whose sum is σ = 369999000. Its totient is φ = 105487488.

The previous prime is 228801571. The next prime is 228801611. The reversal of 228801586 is 685108822.

It is a happy number.

228801586 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 224070961 + 4730625 = 14969^2 + 2175^2 .

It is a super-2 number, since 2×228801586² = 104700331512230792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23080 + ... + 31468.

Almost surely, 2^228801586 is an apocalyptic number.

228801586 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

228801586 is a deficient number, since it is larger than the sum of its proper divisors (141197414).

228801586 is a wasteful number, since it uses less digits than its factorization.

228801586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9453.

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 228801586 is about 15126.1887466738. The cubic root of 228801586 is about 611.6265699284.

The spelling of 228801586 in words is "two hundred twenty-eight million, eight hundred one thousand, five hundred eighty-six".