228457465 has 8 divisors (see below), whose sum is σ = 274619520. Its totient is φ = 182452272.

The previous prime is 228457457. The next prime is 228457469. The reversal of 228457465 is 564754822.

It is a happy number.

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 228457465 - 2³ = 228457457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228457469) 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, 35985 + ... + 41854.

It is an arithmetic number, because the mean of its divisors is an integer number (34327440).

Almost surely, 2^228457465 is an apocalyptic number.

It is an amenable number.

228457465 is a deficient number, since it is larger than the sum of its proper divisors (46162055).

228457465 is an equidigital number, since it uses as much as digits as its factorization.

228457465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78431.

The product of its digits is 537600, while the sum is 43.

The square root of 228457465 is about 15114.8094595995. The cubic root of 228457465 is about 611.3197842439.

The spelling of 228457465 in words is "two hundred twenty-eight million, four hundred fifty-seven thousand, four hundred sixty-five".