454908842 has 12 divisors (see below), whose sum is σ = 693908898. Its totient is φ = 223609800.

The previous prime is 454908841. The next prime is 454908869. The reversal of 454908842 is 248809454.

It can be written as a sum of positive squares in only one way, i.e., 451180081 + 3728761 = 21241^2 + 1931^2 .

It is a junction number, because it is equal to n+sod(n) for n = 454908793 and 454908802.

It is not an unprimeable number, because it can be changed into a prime (454908841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 234617 + ... + 236547.

Almost surely, 2^454908842 is an apocalyptic number.

454908842 is a deficient number, since it is larger than the sum of its proper divisors (239000056).

454908842 is an frugal number, since it uses more digits than its factorization.

454908842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3925 (or 1994 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 44.

The square root of 454908842 is about 21328.5921241886. The cubic root of 454908842 is about 769.0857998279.

The spelling of 454908842 in words is "four hundred fifty-four million, nine hundred eight thousand, eight hundred forty-two".