2005420 has 12 divisors (see below), whose sum is σ = 4211424. Its totient is φ = 802160.

The previous prime is 2005417. The next prime is 2005427. The reversal of 2005420 is 245002.

It is a happy number.

2005420 is a modest number, since divided by 5420 gives 20 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 2005420.

It is not an unprimeable number, because it can be changed into a prime (2005427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50116 + ... + 50155.

It is an arithmetic number, because the mean of its divisors is an integer number (350952).

2^2005420 is an apocalyptic number.

2005420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2005420 is an abundant number, since it is smaller than the sum of its proper divisors (2206004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2005420 is a wasteful number, since it uses less digits than its factorization.

2005420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100280 (or 100278 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 2005420 is about 1416.1285252406. The cubic root of 2005420 is about 126.1058152012.

The spelling of 2005420 in words is "two million, five thousand, four hundred twenty".