40065726 has 32 divisors (see below), whose sum is σ = 81900288. Its totient is φ = 13063680.

The previous prime is 40065713. The next prime is 40065763. The reversal of 40065726 is 62756004.

It is a junction number, because it is equal to n+sod(n) for n = 40065693 and 40065702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69150 + ... + 69726.

It is an arithmetic number, because the mean of its divisors is an integer number (2559384).

Almost surely, 2^40065726 is an apocalyptic number.

40065726 is an abundant number, since it is smaller than the sum of its proper divisors (41834562).

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

40065726 is a wasteful number, since it uses less digits than its factorization.

40065726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 40065726 is about 6329.7492841344. The cubic root of 40065726 is about 342.1824032977.

The spelling of 40065726 in words is "forty million, sixty-five thousand, seven hundred twenty-six".