40940417 has 8 divisors (see below), whose sum is σ = 47487936. Its totient is φ = 34567632.

The previous prime is 40940413. The next prime is 40940423. The reversal of 40940417 is 71404904.

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

It is a cyclic number.

It is not a de Polignac number, because 40940417 - 2² = 40940413 is a prime.

It is a super-2 number, since 2×40940417² = 3352235488267778, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40940417.

It is not an unprimeable number, because it can be changed into a prime (40940411) 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, 43178 + ... + 44115.

It is an arithmetic number, because the mean of its divisors is an integer number (5935992).

Almost surely, 2^40940417 is an apocalyptic number.

It is an amenable number.

40940417 is a deficient number, since it is larger than the sum of its proper divisors (6547519).

40940417 is an equidigital number, since it uses as much as digits as its factorization.

40940417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87367.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 40940417 is about 6398.4698952171. The cubic root of 40940417 is about 344.6546063686.

The spelling of 40940417 in words is "forty million, nine hundred forty thousand, four hundred seventeen".