43443440454 has 64 divisors (see below), whose sum is σ = 92477952000. Its totient is φ = 13567121568.

The previous prime is 43443440389. The next prime is 43443440477. The reversal of 43443440454 is 45404434434.

43443440454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×43443440454² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3782829 + ... + 3794295.

It is an arithmetic number, because the mean of its divisors is an integer number (1444968000).

Almost surely, 2^43443440454 is an apocalyptic number.

43443440454 is an abundant number, since it is smaller than the sum of its proper divisors (49034511546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43443440454 is a wasteful number, since it uses less digits than its factorization.

43443440454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11857.

The product of its (nonzero) digits is 737280, while the sum is 39.

Adding to 43443440454 its reverse (45404434434), we get a palindrome (88847874888).

The spelling of 43443440454 in words is "forty-three billion, four hundred forty-three million, four hundred forty thousand, four hundred fifty-four".