454388661 has 12 divisors (see below), whose sum is σ = 662474592. Its totient is φ = 300094056.

The previous prime is 454388659. The next prime is 454388689. The reversal of 454388661 is 166883454.

It is not a de Polignac number, because 454388661 - 2¹ = 454388659 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454388261) 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 11 ways as a sum of consecutive naturals, for example, 234961 + ... + 236886.

It is an arithmetic number, because the mean of its divisors is an integer number (55206216).

Almost surely, 2^454388661 is an apocalyptic number.

It is an amenable number.

454388661 is a deficient number, since it is larger than the sum of its proper divisors (208085931).

454388661 is a wasteful number, since it uses less digits than its factorization.

454388661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471960 (or 471957 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 454388661 is about 21316.3941838201. The cubic root of 454388661 is about 768.7925422422.

The spelling of 454388661 in words is "four hundred fifty-four million, three hundred eighty-eight thousand, six hundred sixty-one".