40006632 has 16 divisors (see below), whose sum is σ = 100016640. Its totient is φ = 13335536.

The previous prime is 40006621. The next prime is 40006663. The reversal of 40006632 is 23660004.

40006632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40006599 and 40006608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833448 + ... + 833495.

It is an arithmetic number, because the mean of its divisors is an integer number (6251040).

Almost surely, 2^40006632 is an apocalyptic number.

It is an amenable number.

40006632 is an abundant number, since it is smaller than the sum of its proper divisors (60010008).

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

40006632 is a wasteful number, since it uses less digits than its factorization.

40006632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666952 (or 1666948 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 40006632 is about 6325.0796042421. The cubic root of 40006632 is about 342.0140892250.

Adding to 40006632 its reverse (23660004), we get a palindrome (63666636).

The spelling of 40006632 in words is "forty million, six thousand, six hundred thirty-two".