428336141 has 2 divisors, whose sum is σ = 428336142. Its totient is φ = 428336140.

The previous prime is 428336137. The next prime is 428336147. The reversal of 428336141 is 141633824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236513641 + 191822500 = 15379^2 + 13850^2 .

It is a cyclic number.

It is not a de Polignac number, because 428336141 - 2² = 428336137 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 428336098 and 428336107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428336147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214168070 + 214168071.

It is an arithmetic number, because the mean of its divisors is an integer number (214168071).

Almost surely, 2^428336141 is an apocalyptic number.

It is an amenable number.

428336141 is a deficient number, since it is larger than the sum of its proper divisors (1).

428336141 is an equidigital number, since it uses as much as digits as its factorization.

428336141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 32.

The square root of 428336141 is about 20696.2832653595. The cubic root of 428336141 is about 753.8094424013.

Adding to 428336141 its reverse (141633824), we get a palindrome (569969965).

The spelling of 428336141 in words is "four hundred twenty-eight million, three hundred thirty-six thousand, one hundred forty-one".