43320120040 has 32 divisors (see below), whose sum is σ = 101708110080. Its totient is φ = 16574654272.

The previous prime is 43320119977. The next prime is 43320120043. The reversal of 43320120040 is 4002102334.

It is not an unprimeable number, because it can be changed into a prime (43320120043) 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, 23542624 + ... + 23544463.

It is an arithmetic number, because the mean of its divisors is an integer number (3178378440).

Almost surely, 2^43320120040 is an apocalyptic number.

43320120040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43320120040 is an abundant number, since it is smaller than the sum of its proper divisors (58387990040).

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

43320120040 is a wasteful number, since it uses less digits than its factorization.

43320120040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47087121 (or 47087117 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 43320120040 its reverse (4002102334), we get a palindrome (47322222374).

The spelling of 43320120040 in words is "forty-three billion, three hundred twenty million, one hundred twenty thousand, forty".