228491043 has 8 divisors (see below), whose sum is σ = 332350656. Its totient is φ = 138479400.

The previous prime is 228491027. The next prime is 228491051. The reversal of 228491043 is 340194822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228491043 - 2⁴ = 228491027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 6923971 = 228491043 / (2 + 2 + 8 + 4 + 9 + 1 + 0 + 4 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 228490995 and 228491013.

It is not an unprimeable number, because it can be changed into a prime (228491063) 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, 3461953 + ... + 3462018.

It is an arithmetic number, because the mean of its divisors is an integer number (41543832).

Almost surely, 2^228491043 is an apocalyptic number.

228491043 is a deficient number, since it is larger than the sum of its proper divisors (103859613).

228491043 is a wasteful number, since it uses less digits than its factorization.

228491043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6923985.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 228491043 is about 15115.9201837004. The cubic root of 228491043 is about 611.3497327657.

The spelling of 228491043 in words is "two hundred twenty-eight million, four hundred ninety-one thousand, forty-three".