228497427 has 12 divisors (see below), whose sum is σ = 330221424. Its totient is φ = 152253360.

The previous prime is 228497411. The next prime is 228497429. The reversal of 228497427 is 724794822.

228497427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228497427 - 2⁴ = 228497411 is a prime.

It is a super-2 number, since 2×228497427² = 104422148291240658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (228497429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16098 + ... + 26760.

It is an arithmetic number, because the mean of its divisors is an integer number (27518452).

Almost surely, 2^228497427 is an apocalyptic number.

228497427 is a deficient number, since it is larger than the sum of its proper divisors (101723997).

228497427 is a wasteful number, since it uses less digits than its factorization.

228497427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13050 (or 13047 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 228497427 is about 15116.1313503158. The cubic root of 228497427 is about 611.3554263811.

It can be divided in two parts, 22849 and 7427, that added together give a square (30276 = 174²).

The spelling of 228497427 in words is "two hundred twenty-eight million, four hundred ninety-seven thousand, four hundred twenty-seven".