454380391 has 2 divisors, whose sum is σ = 454380392. Its totient is φ = 454380390.

The previous prime is 454380389. The next prime is 454380419. The reversal of 454380391 is 193083454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 454380391 - 2¹ = 454380389 is a prime.

Together with 454380389, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 454380391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454380331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227190195 + 227190196.

It is an arithmetic number, because the mean of its divisors is an integer number (227190196).

Almost surely, 2^454380391 is an apocalyptic number.

454380391 is a deficient number, since it is larger than the sum of its proper divisors (1).

454380391 is an equidigital number, since it uses as much as digits as its factorization.

454380391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 454380391 is about 21316.2002007863. The cubic root of 454380391 is about 768.7878781345.

The spelling of 454380391 in words is "four hundred fifty-four million, three hundred eighty thousand, three hundred ninety-one".