228527478840 has 32 divisors (see below), whose sum is σ = 685582436880. Its totient is φ = 60940660992.

The previous prime is 228527478821. The next prime is 228527478859. The reversal of 228527478840 is 48874725822.

It is an interprime number because it is at equal distance from previous prime (228527478821) and next prime (228527478859).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 952197709 + ... + 952197948.

Almost surely, 2^228527478840 is an apocalyptic number.

228527478840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228527478840 is an abundant number, since it is smaller than the sum of its proper divisors (457054958040).

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

228527478840 is a wasteful number, since it uses less digits than its factorization.

228527478840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904395671 (or 1904395667 counting only the distinct ones).

The product of its (nonzero) digits is 16056320, while the sum is 57.

The spelling of 228527478840 in words is "two hundred twenty-eight billion, five hundred twenty-seven million, four hundred seventy-eight thousand, eight hundred forty".