454438069 has 2 divisors, whose sum is σ = 454438070. Its totient is φ = 454438068.

The previous prime is 454438057. The next prime is 454438073. The reversal of 454438069 is 960834454.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438357969 + 16080100 = 20937^2 + 4010^2 .

It is a cyclic number.

It is not a de Polignac number, because 454438069 - 2⁵ = 454438037 is a prime.

It is a super-2 number, since 2×454438069² = 413027917112897522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454438009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227219034 + 227219035.

It is an arithmetic number, because the mean of its divisors is an integer number (227219035).

Almost surely, 2^454438069 is an apocalyptic number.

It is an amenable number.

454438069 is a deficient number, since it is larger than the sum of its proper divisors (1).

454438069 is an equidigital number, since it uses as much as digits as its factorization.

454438069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 43.

The square root of 454438069 is about 21317.5530725269. The cubic root of 454438069 is about 768.8204061456.

The spelling of 454438069 in words is "four hundred fifty-four million, four hundred thirty-eight thousand, sixty-nine".