10440287 has 8 divisors (see below), whose sum is σ = 12265680. Its totient is φ = 8760960.

The previous prime is 10440277. The next prime is 10440299. The reversal of 10440287 is 78204401.

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

It is a de Polignac number, because none of the positive numbers 2^k-10440287 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10440217) 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, 36362 + ... + 36647.

It is an arithmetic number, because the mean of its divisors is an integer number (1533210).

Almost surely, 2^10440287 is an apocalyptic number.

10440287 is a deficient number, since it is larger than the sum of its proper divisors (1825393).

10440287 is a wasteful number, since it uses less digits than its factorization.

10440287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73033.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 10440287 is about 3231.1432961105. The cubic root of 10440287 is about 218.5600656638.

Adding to 10440287 its reverse (78204401), we get a palindrome (88644688).

The spelling of 10440287 in words is "ten million, four hundred forty thousand, two hundred eighty-seven".