40066437 has 8 divisors (see below), whose sum is σ = 55744704. Its totient is φ = 25549568.

The previous prime is 40066427. The next prime is 40066457. The reversal of 40066437 is 73466004.

40066437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 40066437 - 2⁷ = 40066309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40066417) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 290268 + ... + 290405.

It is an arithmetic number, because the mean of its divisors is an integer number (6968088).

Almost surely, 2^40066437 is an apocalyptic number.

It is an amenable number.

40066437 is a deficient number, since it is larger than the sum of its proper divisors (15678267).

40066437 is a wasteful number, since it uses less digits than its factorization.

40066437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580699.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 40066437 is about 6329.8054472472. The cubic root of 40066437 is about 342.1844273905.

The spelling of 40066437 in words is "forty million, sixty-six thousand, four hundred thirty-seven".