40000332009 has 16 divisors (see below), whose sum is σ = 58259810304. Its totient is φ = 24210330000.

The previous prime is 40000331999. The next prime is 40000332017. The reversal of 40000332009 is 90023300004.

It is not a de Polignac number, because 40000332009 - 2⁴ = 40000331993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40000332059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 782229 + ... + 831794.

It is an arithmetic number, because the mean of its divisors is an integer number (3641238144).

Almost surely, 2^40000332009 is an apocalyptic number.

It is an amenable number.

40000332009 is a deficient number, since it is larger than the sum of its proper divisors (18259478295).

40000332009 is a wasteful number, since it uses less digits than its factorization.

40000332009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614788.

The product of its (nonzero) digits is 648, while the sum is 21.

The spelling of 40000332009 in words is "forty billion, three hundred thirty-two thousand, nine".