1042305 has 16 divisors (see below), whose sum is σ = 1819584. Its totient is φ = 505280.

The previous prime is 1042273. The next prime is 1042309. The reversal of 1042305 is 5032401.

It is not a de Polignac number, because 1042305 - 2⁵ = 1042273 is a prime.

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

It is a Curzon number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1042309) 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, 2994 + ... + 3323.

It is an arithmetic number, because the mean of its divisors is an integer number (113724).

2^1042305 is an apocalyptic number.

1042305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1042305 is a deficient number, since it is larger than the sum of its proper divisors (777279).

1042305 is a wasteful number, since it uses less digits than its factorization.

1042305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6336.

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

The square root of 1042305 is about 1020.9333964564. The cubic root of 1042305 is about 101.3907355501.

Adding to 1042305 its reverse (5032401), we get a palindrome (6074706).

The spelling of 1042305 in words is "one million, forty-two thousand, three hundred five".