1040631217 has 8 divisors (see below), whose sum is σ = 1102159872. Its totient is φ = 979137600.

The previous prime is 1040631187. The next prime is 1040631223. The reversal of 1040631217 is 7121360401.

1040631217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1040631217 - 2¹¹ = 1040629169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1040631191 and 1040631200.

It is not an unprimeable number, because it can be changed into a prime (1040631227) 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, 75792 + ... + 88462.

It is an arithmetic number, because the mean of its divisors is an integer number (137769984).

Almost surely, 2^1040631217 is an apocalyptic number.

1040631217 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1040631217 is a deficient number, since it is larger than the sum of its proper divisors (61528655).

1040631217 is a wasteful number, since it uses less digits than its factorization.

1040631217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17519.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1040631217 is about 32258.8161128086. The cubic root of 1040631217 is about 1013.3643378263.

Adding to 1040631217 its reverse (7121360401), we get a palindrome (8161991618).

The spelling of 1040631217 in words is "one billion, forty million, six hundred thirty-one thousand, two hundred seventeen".