43340420000 has 60 divisors (see below), whose sum is σ = 106623983466. Its totient is φ = 17336160000.

The previous prime is 43340419987. The next prime is 43340420009. The reversal of 43340420000 is 2404334.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 2767180816 + 40573239184 = 52604^2 + 201428^2 .

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

It is not an unprimeable number, because it can be changed into a prime (43340420009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1063511 + ... + 1103510.

Almost surely, 2^43340420000 is an apocalyptic number.

43340420000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43340420000 is an abundant number, since it is smaller than the sum of its proper divisors (63283563466).

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

43340420000 is an equidigital number, since it uses as much as digits as its factorization.

43340420000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167051 (or 2167028 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 43340420000 its reverse (2404334), we get a palindrome (43342824334).

The spelling of 43340420000 in words is "forty-three billion, three hundred forty million, four hundred twenty thousand".