228761499 has 8 divisors (see below), whose sum is σ = 305086032. Its totient is φ = 152472320.

The previous prime is 228761453. The next prime is 228761513. The reversal of 228761499 is 994167822.

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 228761499 - 2¹⁷ = 228630427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228761699) by changing a digit.

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, 17347 + ... + 27539.

It is an arithmetic number, because the mean of its divisors is an integer number (38135754).

Almost surely, 2^228761499 is an apocalyptic number.

228761499 is a deficient number, since it is larger than the sum of its proper divisors (76324533).

228761499 is a wasteful number, since it uses less digits than its factorization.

228761499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17677.

The product of its digits is 435456, while the sum is 48.

The square root of 228761499 is about 15124.8636026908. The cubic root of 228761499 is about 611.5908479932.

The spelling of 228761499 in words is "two hundred twenty-eight million, seven hundred sixty-one thousand, four hundred ninety-nine".