454919881 has 16 divisors (see below), whose sum is σ = 519465744. Its totient is φ = 394665984.

The previous prime is 454919873. The next prime is 454919911. The reversal of 454919881 is 188919454.

It can be written as a sum of positive squares in 8 ways, for example, as 846400 + 454073481 = 920^2 + 21309^2 .

It is a cyclic number.

It is not a de Polignac number, because 454919881 - 2³ = 454919873 is a prime.

It is a super-2 number, since 2×454919881² = 413904196258108322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (454919281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267225 + ... + 268921.

It is an arithmetic number, because the mean of its divisors is an integer number (32466609).

Almost surely, 2^454919881 is an apocalyptic number.

It is an amenable number.

454919881 is a deficient number, since it is larger than the sum of its proper divisors (64545863).

454919881 is a wasteful number, since it uses less digits than its factorization.

454919881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2940.

The product of its digits is 414720, while the sum is 49.

The square root of 454919881 is about 21328.8509066944. The cubic root of 454919881 is about 769.0920207589.

The spelling of 454919881 in words is "four hundred fifty-four million, nine hundred nineteen thousand, eight hundred eighty-one".