10420305 has 16 divisors (see below), whose sum is σ = 19054464. Its totient is φ = 4763520.

The previous prime is 10420279. The next prime is 10420307. The reversal of 10420305 is 50302401.

It is not a de Polignac number, because 10420305 - 2⁷ = 10420177 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 (10420307) 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, 49516 + ... + 49725.

It is an arithmetic number, because the mean of its divisors is an integer number (1190904).

Almost surely, 2^10420305 is an apocalyptic number.

10420305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10420305 is a deficient number, since it is larger than the sum of its proper divisors (8634159).

10420305 is an equidigital number, since it uses as much as digits as its factorization.

10420305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99256.

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

The square root of 10420305 is about 3228.0497208067. The cubic root of 10420305 is about 218.4205402397.

Adding to 10420305 its reverse (50302401), we get a palindrome (60722706).

The spelling of 10420305 in words is "ten million, four hundred twenty thousand, three hundred five".