453444445 has 16 divisors (see below), whose sum is σ = 550953648. Its totient is φ = 358225920.

The previous prime is 453444427. The next prime is 453444457. The reversal of 453444445 is 544444354.

It can be written as a sum of positive squares in 8 ways, for example, as 24581764 + 428862681 = 4958^2 + 20709^2 .

It is not a de Polignac number, because 453444445 - 2⁵ = 453444413 is a prime.

It is a super-2 number, since 2×453444445² = 411223729402716050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327655 + ... + 329035.

It is an arithmetic number, because the mean of its divisors is an integer number (34434603).

Almost surely, 2^453444445 is an apocalyptic number.

It is an amenable number.

453444445 is a deficient number, since it is larger than the sum of its proper divisors (97509203).

453444445 is a wasteful number, since it uses less digits than its factorization.

453444445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160.

The product of its digits is 307200, while the sum is 37.

The square root of 453444445 is about 21294.2350179573. The cubic root of 453444445 is about 768.2596580457.

Adding to 453444445 its reverse (544444354), we get a palindrome (997888799).

Subtracting 453444445 from its reverse (544444354), we obtain a palindrome (90999909).

The spelling of 453444445 in words is "four hundred fifty-three million, four hundred forty-four thousand, four hundred forty-five".