40065297 has 8 divisors (see below), whose sum is σ = 54428544. Its totient is φ = 26206128.

The previous prime is 40065257. The next prime is 40065317. The reversal of 40065297 is 79256004.

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

It is not a de Polignac number, because 40065297 - 2⁷ = 40065169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40065217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125833 + ... + 126150.

It is an arithmetic number, because the mean of its divisors is an integer number (6803568).

Almost surely, 2^40065297 is an apocalyptic number.

It is an amenable number.

40065297 is a deficient number, since it is larger than the sum of its proper divisors (14363247).

40065297 is a wasteful number, since it uses less digits than its factorization.

40065297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252039.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 40065297 is about 6329.7153964456. The cubic root of 40065297 is about 342.1811819980.

The spelling of 40065297 in words is "forty million, sixty-five thousand, two hundred ninety-seven".