10819405 has 4 divisors (see below), whose sum is σ = 12983292. Its totient is φ = 8655520.

The previous prime is 10819363. The next prime is 10819427. The reversal of 10819405 is 50491801.

It is a happy number.

10819405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3437316 + 7382089 = 1854^2 + 2717^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10819405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081936 + ... + 1081945.

It is an arithmetic number, because the mean of its divisors is an integer number (3245823).

Almost surely, 2^10819405 is an apocalyptic number.

It is an amenable number.

10819405 is a deficient number, since it is larger than the sum of its proper divisors (2163887).

10819405 is an equidigital number, since it uses as much as digits as its factorization.

10819405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163886.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 10819405 is about 3289.2863967736. The cubic root of 10819405 is about 221.1741970628.

The spelling of 10819405 in words is "ten million, eight hundred nineteen thousand, four hundred five".