40066737 has 8 divisors (see below), whose sum is σ = 54219936. Its totient is φ = 26312352.

The previous prime is 40066729. The next prime is 40066751. The reversal of 40066737 is 73766004.

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

It is not a de Polignac number, because 40066737 - 2³ = 40066729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40066698 and 40066707.

It is not an unprimeable number, because it can be changed into a prime (40066727) 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, 99468 + ... + 99869.

It is an arithmetic number, because the mean of its divisors is an integer number (6777492).

Almost surely, 2^40066737 is an apocalyptic number.

It is an amenable number.

40066737 is a deficient number, since it is larger than the sum of its proper divisors (14153199).

40066737 is a wasteful number, since it uses less digits than its factorization.

40066737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199407.

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 40066737 is about 6329.8291446136. The cubic root of 40066737 is about 342.1852814310.

The spelling of 40066737 in words is "forty million, sixty-six thousand, seven hundred thirty-seven".