228415512 has 32 divisors (see below), whose sum is σ = 614965680. Its totient is φ = 70281600.

The previous prime is 228415433. The next prime is 228415547. The reversal of 228415512 is 215514822.

228415512 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×228415512² = 104347292244444288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 228415512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365739 + ... + 366362.

Almost surely, 2^228415512 is an apocalyptic number.

It is an amenable number.

228415512 is an abundant number, since it is smaller than the sum of its proper divisors (386550168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228415512 is a wasteful number, since it uses less digits than its factorization.

228415512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732123 (or 732119 counting only the distinct ones).

The product of its digits is 6400, while the sum is 30.

The square root of 228415512 is about 15113.4215848034. The cubic root of 228415512 is about 611.2823618599.

The spelling of 228415512 in words is "two hundred twenty-eight million, four hundred fifteen thousand, five hundred twelve".