228761500 has 48 divisors (see below), whose sum is σ = 545047776. Its totient is φ = 83184000.

The previous prime is 228761453. The next prime is 228761513. The reversal of 228761500 is 5167822.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15297 + ... + 26296.

It is an arithmetic number, because the mean of its divisors is an integer number (11355162).

Almost surely, 2^228761500 is an apocalyptic number.

228761500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228761500 is an abundant number, since it is smaller than the sum of its proper divisors (316286276).

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

228761500 is a wasteful number, since it uses less digits than its factorization.

228761500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41623 (or 41611 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 228761500 is about 15124.8636357489. The cubic root of 228761500 is about 611.5908488843.

The spelling of 228761500 in words is "two hundred twenty-eight million, seven hundred sixty-one thousand, five hundred".