228334493 has 2 divisors, whose sum is σ = 228334494. Its totient is φ = 228334492.

The previous prime is 228334489. The next prime is 228334517. The reversal of 228334493 is 394433822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188732644 + 39601849 = 13738^2 + 6293^2 .

It is a cyclic number.

It is not a de Polignac number, because 228334493 - 2² = 228334489 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228334423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114167246 + 114167247.

It is an arithmetic number, because the mean of its divisors is an integer number (114167247).

Almost surely, 2^228334493 is an apocalyptic number.

It is an amenable number.

228334493 is a deficient number, since it is larger than the sum of its proper divisors (1).

228334493 is an equidigital number, since it uses as much as digits as its factorization.

228334493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 38.

The square root of 228334493 is about 15110.7409811697. The cubic root of 228334493 is about 611.2100793458.

The spelling of 228334493 in words is "two hundred twenty-eight million, three hundred thirty-four thousand, four hundred ninety-three".