2054220 has 96 divisors (see below), whose sum is σ = 6763008. Its totient is φ = 456192.

The previous prime is 2054207. The next prime is 2054231. The reversal of 2054220 is 224502.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2054220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28104 + ... + 28176.

It is an arithmetic number, because the mean of its divisors is an integer number (70448).

2^2054220 is an apocalyptic number.

2054220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2054220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3381504).

2054220 is an abundant number, since it is smaller than the sum of its proper divisors (4708788).

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

2054220 is a wasteful number, since it uses less digits than its factorization.

2054220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2054220 is about 1433.2550366212. The cubic root of 2054220 is about 127.1205171732.

Adding to 2054220 its reverse (224502), we get a palindrome (2278722).

The spelling of 2054220 in words is "two million, fifty-four thousand, two hundred twenty".