40722017 has 8 divisors (see below), whose sum is σ = 46880256. Its totient is φ = 34648992.

The previous prime is 40722001. The next prime is 40722023. The reversal of 40722017 is 71022704.

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

It is not a de Polignac number, because 40722017 - 2⁴ = 40722001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40721983 and 40722001.

It is not an unprimeable number, because it can be changed into a prime (40722317) 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, 20273 + ... + 22190.

It is an arithmetic number, because the mean of its divisors is an integer number (5860032).

Almost surely, 2^40722017 is an apocalyptic number.

It is an amenable number.

40722017 is a deficient number, since it is larger than the sum of its proper divisors (6158239).

40722017 is a wasteful number, since it uses less digits than its factorization.

40722017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42607.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 40722017 is about 6381.3804932789. The cubic root of 40722017 is about 344.0406506180.

The spelling of 40722017 in words is "forty million, seven hundred twenty-two thousand, seventeen".