40502217 has 8 divisors (see below), whose sum is σ = 61717696. Its totient is φ = 23144112.

The previous prime is 40502201. The next prime is 40502221. The reversal of 40502217 is 71220504.

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

It is not a de Polignac number, because 40502217 - 2⁴ = 40502201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1928677 = 40502217 / (4 + 0 + 5 + 0 + 2 + 2 + 1 + 7).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40502193 and 40502202.

It is not an unprimeable number, because it can be changed into a prime (40502117) 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, 964318 + ... + 964359.

It is an arithmetic number, because the mean of its divisors is an integer number (7714712).

Almost surely, 2^40502217 is an apocalyptic number.

It is an amenable number.

40502217 is a deficient number, since it is larger than the sum of its proper divisors (21215479).

40502217 is a wasteful number, since it uses less digits than its factorization.

40502217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928687.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 40502217 is about 6364.1352122657. The cubic root of 40502217 is about 343.4205389022.

The spelling of 40502217 in words is "forty million, five hundred two thousand, two hundred seventeen".