40543534320 has 40 divisors (see below), whose sum is σ = 125684957136. Its totient is φ = 10811609088.

The previous prime is 40543534279. The next prime is 40543534337. The reversal of 40543534320 is 2343534504.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 84465457 + ... + 84465936.

Almost surely, 2^40543534320 is an apocalyptic number.

40543534320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40543534320 is an abundant number, since it is smaller than the sum of its proper divisors (85141422816).

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

40543534320 is a wasteful number, since it uses less digits than its factorization.

40543534320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168931409 (or 168931403 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 33.

The spelling of 40543534320 in words is "forty billion, five hundred forty-three million, five hundred thirty-four thousand, three hundred twenty".