228770460 has 48 divisors (see below), whose sum is σ = 711732000. Its totient is φ = 61005312.

The previous prime is 228770453. The next prime is 228770467. The reversal of 228770460 is 64077822.

It is an interprime number because it is at equal distance from previous prime (228770453) and next prime (228770467).

It is a super-2 number, since 2×228770460² = 104671846737223200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228770467) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 211285 + ... + 212364.

It is an arithmetic number, because the mean of its divisors is an integer number (14827750).

Almost surely, 2^228770460 is an apocalyptic number.

228770460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228770460 is an abundant number, since it is smaller than the sum of its proper divisors (482961540).

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

228770460 is a wasteful number, since it uses less digits than its factorization.

228770460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423667 (or 423659 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 228770460 is about 15125.1598338662. The cubic root of 228770460 is about 611.5988335940.

The spelling of 228770460 in words is "two hundred twenty-eight million, seven hundred seventy thousand, four hundred sixty".