40005043530 has 64 divisors (see below), whose sum is σ = 96279694848. Its totient is φ = 10638333440.

The previous prime is 40005043523. The next prime is 40005043597. The reversal of 40005043530 is 3534050004.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40005043530.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26902447 + ... + 26903933.

It is an arithmetic number, because the mean of its divisors is an integer number (1504370232).

Almost surely, 2^40005043530 is an apocalyptic number.

40005043530 is an abundant number, since it is smaller than the sum of its proper divisors (56274651318).

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

40005043530 is a wasteful number, since it uses less digits than its factorization.

40005043530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391.

The product of its (nonzero) digits is 3600, while the sum is 24.

Adding to 40005043530 its reverse (3534050004), we get a palindrome (43539093534).

The spelling of 40005043530 in words is "forty billion, five million, forty-three thousand, five hundred thirty".