428457361 has 2 divisors, whose sum is σ = 428457362. Its totient is φ = 428457360.

The previous prime is 428457349. The next prime is 428457383. The reversal of 428457361 is 163754824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 267649600 + 160807761 = 16360^2 + 12681^2 .

It is a cyclic number.

It is not a de Polignac number, because 428457361 - 2⁵ = 428457329 is a prime.

It is not a weakly prime, because it can be changed into another prime (428457331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214228680 + 214228681.

It is an arithmetic number, because the mean of its divisors is an integer number (214228681).

Almost surely, 2^428457361 is an apocalyptic number.

It is an amenable number.

428457361 is a deficient number, since it is larger than the sum of its proper divisors (1).

428457361 is an equidigital number, since it uses as much as digits as its factorization.

428457361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 40.

The square root of 428457361 is about 20699.2116033437. The cubic root of 428457361 is about 753.8805455633.

The spelling of 428457361 in words is "four hundred twenty-eight million, four hundred fifty-seven thousand, three hundred sixty-one".