40399017 has 8 divisors (see below), whose sum is σ = 56207424. Its totient is φ = 25761648.

The previous prime is 40398977. The next prime is 40399039. The reversal of 40399017 is 71099304.

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

It is not a de Polignac number, because 40399017 - 2¹⁹ = 39874729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40399067) 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, 292678 + ... + 292815.

It is an arithmetic number, because the mean of its divisors is an integer number (7025928).

Almost surely, 2^40399017 is an apocalyptic number.

It is an amenable number.

40399017 is a deficient number, since it is larger than the sum of its proper divisors (15808407).

40399017 is a wasteful number, since it uses less digits than its factorization.

40399017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585519.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 40399017 is about 6356.0221050591. The cubic root of 40399017 is about 343.1286113136.

The spelling of 40399017 in words is "forty million, three hundred ninety-nine thousand, seventeen".