228532949 has 4 divisors (see below), whose sum is σ = 229277664. Its totient is φ = 227788236.

The previous prime is 228532933. The next prime is 228532957. The reversal of 228532949 is 949235822.

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 228532949 - 2⁴ = 228532933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228532919) 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, 371897 + ... + 372510.

It is an arithmetic number, because the mean of its divisors is an integer number (57319416).

Almost surely, 2^228532949 is an apocalyptic number.

It is an amenable number.

228532949 is a deficient number, since it is larger than the sum of its proper divisors (744715).

228532949 is an equidigital number, since it uses as much as digits as its factorization.

228532949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744714.

The product of its digits is 311040, while the sum is 44.

The square root of 228532949 is about 15117.3062745980. The cubic root of 228532949 is about 611.3871049905.

The spelling of 228532949 in words is "two hundred twenty-eight million, five hundred thirty-two thousand, nine hundred forty-nine".