40323503544 has 64 divisors (see below), whose sum is σ = 101424960000. Its totient is φ = 13359243264.

The previous prime is 40323503537. The next prime is 40323503569. The reversal of 40323503544 is 44530532304.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2873457 + ... + 2887455.

It is an arithmetic number, because the mean of its divisors is an integer number (1584765000).

Almost surely, 2^40323503544 is an apocalyptic number.

It is an amenable number.

40323503544 is an abundant number, since it is smaller than the sum of its proper divisors (61101456456).

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

40323503544 is a wasteful number, since it uses less digits than its factorization.

40323503544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14732 (or 14728 counting only the distinct ones).

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

The spelling of 40323503544 in words is "forty billion, three hundred twenty-three million, five hundred three thousand, five hundred forty-four".