454400818 has 16 divisors (see below), whose sum is σ = 689546520. Its totient is φ = 224560000.

The previous prime is 454400741. The next prime is 454400819. The reversal of 454400818 is 818004454.

It can be written as a sum of positive squares in 4 ways, for example, as 446181129 + 8219689 = 21123^2 + 2867^2 .

It is not an unprimeable number, because it can be changed into a prime (454400819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139998 + ... + 143206.

Almost surely, 2^454400818 is an apocalyptic number.

454400818 is a deficient number, since it is larger than the sum of its proper divisors (235145702).

454400818 is a wasteful number, since it uses less digits than its factorization.

454400818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4013.

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 454400818 is about 21316.6793380207. The cubic root of 454400818 is about 768.7993984341.

The spelling of 454400818 in words is "four hundred fifty-four million, four hundred thousand, eight hundred eighteen".