228369904427 has 8 divisors (see below), whose sum is σ = 261675626496. Its totient is φ = 195234544872.

The previous prime is 228369904397. The next prime is 228369904457. The reversal of 228369904427 is 724409963822.

It is an interprime number because it is at equal distance from previous prime (228369904397) and next prime (228369904457).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228369904427 - 2⁶ = 228369904363 is a prime.

It is a super-2 number, since 2×228369904427² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228369904457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42587753 + ... + 42593114.

It is an arithmetic number, because the mean of its divisors is an integer number (32709453312).

Almost surely, 2^228369904427 is an apocalyptic number.

228369904427 is a deficient number, since it is larger than the sum of its proper divisors (33305722069).

228369904427 is an equidigital number, since it uses as much as digits as its factorization.

228369904427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85181257.

The product of its (nonzero) digits is 10450944, while the sum is 56.

The spelling of 228369904427 in words is "two hundred twenty-eight billion, three hundred sixty-nine million, nine hundred four thousand, four hundred twenty-seven".