454042397 has 2 divisors, whose sum is σ = 454042398. Its totient is φ = 454042396.

The previous prime is 454042387. The next prime is 454042417. The reversal of 454042397 is 793240454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320732281 + 133310116 = 17909^2 + 11546^2 .

It is a cyclic number.

It is not a de Polignac number, because 454042397 - 2²² = 449848093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 454042397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454042387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227021198 + 227021199.

It is an arithmetic number, because the mean of its divisors is an integer number (227021199).

Almost surely, 2^454042397 is an apocalyptic number.

It is an amenable number.

454042397 is a deficient number, since it is larger than the sum of its proper divisors (1).

454042397 is an equidigital number, since it uses as much as digits as its factorization.

454042397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 454042397 is about 21308.2706243374. The cubic root of 454042397 is about 768.5972081209.

The spelling of 454042397 in words is "four hundred fifty-four million, forty-two thousand, three hundred ninety-seven".