4190805 has 32 divisors (see below), whose sum is σ = 7660800. Its totient is φ = 2172096.

The previous prime is 4190803. The next prime is 4190833. The reversal of 4190805 is 5080914.

It is not a de Polignac number, because 4190805 - 2¹ = 4190803 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4190803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4576 + ... + 5414.

It is an arithmetic number, because the mean of its divisors is an integer number (239400).

Almost surely, 2^4190805 is an apocalyptic number.

4190805 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4190805 is a deficient number, since it is larger than the sum of its proper divisors (3469995).

4190805 is a wasteful number, since it uses less digits than its factorization.

4190805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 4190805 is about 2047.1455737197. The cubic root of 4190805 is about 161.2250366981.

The spelling of 4190805 in words is "four million, one hundred ninety thousand, eight hundred five".