228490427 has 8 divisors (see below), whose sum is σ = 249378480. Its totient is φ = 207621760.

The previous prime is 228490397. The next prime is 228490439. The reversal of 228490427 is 724094822.

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 228490427 - 2²⁴ = 211713211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228400427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32063 + ... + 38535.

It is an arithmetic number, because the mean of its divisors is an integer number (31172310).

Almost surely, 2^228490427 is an apocalyptic number.

228490427 is a deficient number, since it is larger than the sum of its proper divisors (20888053).

228490427 is a wasteful number, since it uses less digits than its factorization.

228490427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9693.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 228490427 is about 15115.8998078183. The cubic root of 228490427 is about 611.3491833762.

The spelling of 228490427 in words is "two hundred twenty-eight million, four hundred ninety thousand, four hundred twenty-seven".