43304200040 has 16 divisors (see below), whose sum is σ = 97434450180. Its totient is φ = 17321680000.

The previous prime is 43304200021. The next prime is 43304200109. The reversal of 43304200040 is 4000240334.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 41406552196 + 1897647844 = 203486^2 + 43562^2 .

It is a super-2 number, since 2×43304200040² (a number of 22 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 43304199985 and 43304200021.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 541302461 + ... + 541302540.

Almost surely, 2^43304200040 is an apocalyptic number.

43304200040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43304200040 is an abundant number, since it is smaller than the sum of its proper divisors (54130250140).

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

43304200040 is a wasteful number, since it uses less digits than its factorization.

43304200040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082605012 (or 1082605008 counting only the distinct ones).

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

Adding to 43304200040 its reverse (4000240334), we get a palindrome (47304440374).

The spelling of 43304200040 in words is "forty-three billion, three hundred four million, two hundred thousand, forty".