40005102520 has 16 divisors (see below), whose sum is σ = 90011480760. Its totient is φ = 16002040992.

The previous prime is 40005102517. The next prime is 40005102539. The reversal of 40005102520 is 2520150004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500063742 + ... + 500063821.

Almost surely, 2^40005102520 is an apocalyptic number.

40005102520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40005102520 is an abundant number, since it is smaller than the sum of its proper divisors (50006378240).

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

40005102520 is a wasteful number, since it uses less digits than its factorization.

40005102520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000127574 (or 1000127570 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

Adding to 40005102520 its reverse (2520150004), we get a palindrome (42525252524).

The spelling of 40005102520 in words is "forty billion, five million, one hundred two thousand, five hundred twenty".