228317870 has 64 divisors (see below), whose sum is σ = 488332800. Its totient is φ = 75922560.

The previous prime is 228317867. The next prime is 228317893. The reversal of 228317870 is 78713822.

It is a super-2 number, since 2×228317870² = 104258099522673800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58727 + ... + 62493.

It is an arithmetic number, because the mean of its divisors is an integer number (7630200).

Almost surely, 2^228317870 is an apocalyptic number.

228317870 is an abundant number, since it is smaller than the sum of its proper divisors (260014930).

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

228317870 is a wasteful number, since it uses less digits than its factorization.

228317870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 228317870 is about 15110.1909319505. The cubic root of 228317870 is about 611.1952467325.

The spelling of 228317870 in words is "two hundred twenty-eight million, three hundred seventeen thousand, eight hundred seventy".