43343040040 has 32 divisors (see below), whose sum is σ = 99120564360. Its totient is φ = 17052998400.

The previous prime is 43343040019. The next prime is 43343040049. The reversal of 43343040040 is 4004034334.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19807184644 + 23535855396 = 140738^2 + 153414^2 .

It is a junction number, because it is equal to n+sod(n) for n = 43343039987 and 43343040014.

It is not an unprimeable number, because it can be changed into a prime (43343040049) 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, 8879331 + ... + 8884210.

Almost surely, 2^43343040040 is an apocalyptic number.

43343040040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43343040040 is an abundant number, since it is smaller than the sum of its proper divisors (55777524320).

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

43343040040 is a wasteful number, since it uses less digits than its factorization.

43343040040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17763613 (or 17763609 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 43343040040 its reverse (4004034334), we get a palindrome (47347074374).

The spelling of 43343040040 in words is "forty-three billion, three hundred forty-three million, forty thousand, forty".