10380905 has 8 divisors (see below), whose sum is σ = 12793992. Its totient is φ = 8080128.

The previous prime is 10380883. The next prime is 10380907. The reversal of 10380905 is 50908301.

It can be written as a sum of positive squares in 4 ways, for example, as 262144 + 10118761 = 512^2 + 3181^2 .

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 10380905 - 2¹⁶ = 10315369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10380907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27872 + ... + 28241.

It is an arithmetic number, because the mean of its divisors is an integer number (1599249).

Almost surely, 2^10380905 is an apocalyptic number.

It is an amenable number.

10380905 is a deficient number, since it is larger than the sum of its proper divisors (2413087).

10380905 is an equidigital number, since it uses as much as digits as its factorization.

10380905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56155.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 10380905 is about 3221.9411850622. The cubic root of 10380905 is about 218.1449040821.

The spelling of 10380905 in words is "ten million, three hundred eighty thousand, nine hundred five".