228737449 has 4 divisors (see below), whose sum is σ = 229014864. Its totient is φ = 228460036.

The previous prime is 228737429. The next prime is 228737489. The reversal of 228737449 is 944737822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 228737449 - 2⁵ = 228737417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228737399 and 228737408.

It is not an unprimeable number, because it can be changed into a prime (228737429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137467 + ... + 139120.

It is an arithmetic number, because the mean of its divisors is an integer number (57253716).

Almost surely, 2^228737449 is an apocalyptic number.

It is an amenable number.

228737449 is a deficient number, since it is larger than the sum of its proper divisors (277415).

228737449 is an equidigital number, since it uses as much as digits as its factorization.

228737449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277414.

The product of its digits is 677376, while the sum is 46.

The square root of 228737449 is about 15124.0685333015. The cubic root of 228737449 is about 611.5694147895.

The spelling of 228737449 in words is "two hundred twenty-eight million, seven hundred thirty-seven thousand, four hundred forty-nine".