40539066 has 8 divisors (see below), whose sum is σ = 81078144. Its totient is φ = 13513020.

The previous prime is 40539061. The next prime is 40539091. The reversal of 40539066 is 66093504.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

40539066 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (40539061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3378250 + ... + 3378261.

It is an arithmetic number, because the mean of its divisors is an integer number (10134768).

Almost surely, 2^40539066 is an apocalyptic number.

40539066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40539066 is a wasteful number, since it uses less digits than its factorization.

40539066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6756516.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 40539066 is about 6367.0296057110. The cubic root of 40539066 is about 343.5246555700.

The spelling of 40539066 in words is "forty million, five hundred thirty-nine thousand, sixty-six".