40038006 has 16 divisors (see below), whose sum is σ = 80144064. Its totient is φ = 13334664.

The previous prime is 40038001. The next prime is 40038013. The reversal of 40038006 is 60083004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40038001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8001 + ... + 12003.

It is an arithmetic number, because the mean of its divisors is an integer number (5009004).

Almost surely, 2^40038006 is an apocalyptic number.

40038006 is an abundant number, since it is smaller than the sum of its proper divisors (40106058).

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

40038006 is a wasteful number, since it uses less digits than its factorization.

40038006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5675.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 40038006 is about 6327.5592450802. The cubic root of 40038006 is about 342.1034706245.

The spelling of 40038006 in words is "forty million, thirty-eight thousand, six".