43450130000 has 100 divisors (see below), whose sum is σ = 111385610820. Its totient is φ = 16357632000.

The previous prime is 43450129991. The next prime is 43450130021. The reversal of 43450130000 is 3105434.

It can be written as a sum of positive squares in 10 ways, for example, as 38865756736 + 4584373264 = 197144^2 + 67708^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 42206 + ... + 297794.

Almost surely, 2^43450130000 is an apocalyptic number.

43450130000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43450130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55692805410).

43450130000 is an abundant number, since it is smaller than the sum of its proper divisors (67935480820).

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

43450130000 is a wasteful number, since it uses less digits than its factorization.

43450130000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255634 (or 255613 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 43450130000 its reverse (3105434), we get a palindrome (43453235434).

The spelling of 43450130000 in words is "forty-three billion, four hundred fifty million, one hundred thirty thousand".