2005390 has 16 divisors (see below), whose sum is σ = 3726720. Its totient is φ = 776160.

The previous prime is 2005387. The next prime is 2005397. The reversal of 2005390 is 935002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2925 + ... + 3544.

It is an arithmetic number, because the mean of its divisors is an integer number (232920).

2^2005390 is an apocalyptic number.

2005390 is a deficient number, since it is larger than the sum of its proper divisors (1721330).

2005390 is a wasteful number, since it uses less digits than its factorization.

2005390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6507.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 2005390 is about 1416.1179329420. The cubic root of 2005390 is about 126.1051863731.

The spelling of 2005390 in words is "two million, five thousand, three hundred ninety".