40009000506 has 64 divisors (see below), whose sum is σ = 88657037568. Its totient is φ = 11982117888.

The previous prime is 40009000501. The next prime is 40009000519. The reversal of 40009000506 is 60500090004.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40009000501) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 100011 + ... + 300033.

It is an arithmetic number, because the mean of its divisors is an integer number (1385266212).

Almost surely, 2^40009000506 is an apocalyptic number.

It is a pronic number, being equal to 200022×200023.

40009000506 is an abundant number, since it is smaller than the sum of its proper divisors (48648037062).

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

40009000506 is a wasteful number, since it uses less digits than its factorization.

40009000506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200135.

The product of its (nonzero) digits is 1080, while the sum is 24.

The spelling of 40009000506 in words is "forty billion, nine million, five hundred six", and thus it is an aban number.