10240387 has 8 divisors (see below), whose sum is σ = 10418576. Its totient is φ = 10063872.

The previous prime is 10240369. The next prime is 10240397. The reversal of 10240387 is 78304201.

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 10240387 - 2¹⁵ = 10207619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10240327) 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, 18448 + ... + 18994.

It is an arithmetic number, because the mean of its divisors is an integer number (1302322).

Almost surely, 2^10240387 is an apocalyptic number.

10240387 is a deficient number, since it is larger than the sum of its proper divisors (178189).

10240387 is an equidigital number, since it uses as much as digits as its factorization.

10240387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 10240387 is about 3200.0604681787. The cubic root of 10240387 is about 217.1561449171.

Adding to 10240387 its reverse (78304201), we get a palindrome (88544588).

The spelling of 10240387 in words is "ten million, two hundred forty thousand, three hundred eighty-seven".