454442393 has 2 divisors, whose sum is σ = 454442394. Its totient is φ = 454442392.

The previous prime is 454442377. The next prime is 454442407. The reversal of 454442393 is 393244454.

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., 291828889 + 162613504 = 17083^2 + 12752^2 .

It is a cyclic number.

It is not a de Polignac number, because 454442393 - 2⁴ = 454442377 is a prime.

It is not a weakly prime, because it can be changed into another prime (454442333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227221196 + 227221197.

It is an arithmetic number, because the mean of its divisors is an integer number (227221197).

Almost surely, 2^454442393 is an apocalyptic number.

It is an amenable number.

454442393 is a deficient number, since it is larger than the sum of its proper divisors (1).

454442393 is an equidigital number, since it uses as much as digits as its factorization.

454442393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 38.

The square root of 454442393 is about 21317.6544910551. The cubic root of 454442393 is about 768.8228445922.

The spelling of 454442393 in words is "four hundred fifty-four million, four hundred forty-two thousand, three hundred ninety-three".