228740460 has 48 divisors (see below), whose sum is σ = 689742816. Its totient is φ = 56305152.

The previous prime is 228740459. The next prime is 228740461. The reversal of 228740460 is 64047822.

228740460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (228740459) and next prime (228740461).

It is not an unprimeable number, because it can be changed into a prime (228740461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145849 + ... + 147408.

It is an arithmetic number, because the mean of its divisors is an integer number (14369642).

Almost surely, 2^228740460 is an apocalyptic number.

228740460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228740460 is an abundant number, since it is smaller than the sum of its proper divisors (461002356).

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

228740460 is a wasteful number, since it uses less digits than its factorization.

228740460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293282 (or 293280 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 228740460 is about 15124.1680762943. The cubic root of 228740460 is about 611.5720982554.

The spelling of 228740460 in words is "two hundred twenty-eight million, seven hundred forty thousand, four hundred sixty".