10240305 has 16 divisors (see below), whose sum is σ = 16828224. Its totient is φ = 5313600.

The previous prime is 10240303. The next prime is 10240319. The reversal of 10240305 is 50304201.

It is not a de Polignac number, because 10240305 - 2¹ = 10240303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (10240301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8671 + ... + 9780.

It is an arithmetic number, because the mean of its divisors is an integer number (1051764).

Almost surely, 2^10240305 is an apocalyptic number.

10240305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10240305 is a deficient number, since it is larger than the sum of its proper divisors (6587919).

10240305 is a wasteful number, since it uses less digits than its factorization.

10240305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18496.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 10240305 is about 3200.0476558951. The cubic root of 10240305 is about 217.1555652889.

Adding to 10240305 its reverse (50304201), we get a palindrome (60544506).

The spelling of 10240305 in words is "ten million, two hundred forty thousand, three hundred five".