40539006 has 24 divisors (see below), whose sum is σ = 87954984. Its totient is φ = 13494480.

The previous prime is 40539001. The next prime is 40539029. The reversal of 40539006 is 60093504.

It is a happy number.

It is a super-2 number, since 2×40539006² = 3286822014936072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40539001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20305 + ... + 22211.

It is an arithmetic number, because the mean of its divisors is an integer number (3664791).

Almost surely, 2^40539006 is an apocalyptic number.

40539006 is an abundant number, since it is smaller than the sum of its proper divisors (47415978).

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

40539006 is a wasteful number, since it uses less digits than its factorization.

40539006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3096 (or 3093 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 40539006 is about 6367.0248939359. The cubic root of 40539006 is about 343.5244860916.

The spelling of 40539006 in words is "forty million, five hundred thirty-nine thousand, six".