4228394437 has 2 divisors, whose sum is σ = 4228394438. Its totient is φ = 4228394436.

The previous prime is 4228394393. The next prime is 4228394461. The reversal of 4228394437 is 7344938224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4199169601 + 29224836 = 64801^2 + 5406^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4228394437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4228394237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2114197218 + 2114197219.

It is an arithmetic number, because the mean of its divisors is an integer number (2114197219).

Almost surely, 2^4228394437 is an apocalyptic number.

It is an amenable number.

4228394437 is a deficient number, since it is larger than the sum of its proper divisors (1).

4228394437 is an equidigital number, since it uses as much as digits as its factorization.

4228394437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 46.

The square root of 4228394437 is about 65026.1058114355. The cubic root of 4228394437 is about 1617.0563876591.

The spelling of 4228394437 in words is "four billion, two hundred twenty-eight million, three hundred ninety-four thousand, four hundred thirty-seven".