4405800 has 96 divisors (see below), whose sum is σ = 15624000. Its totient is φ = 1006080.

The previous prime is 4405789. The next prime is 4405829. The reversal of 4405800 is 85044.

It is a Cunningham number, because it is equal to 2099²-1.

It is a super-2 number, since 2×4405800² = 38822147280000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3676 + ... + 4724.

It is an arithmetic number, because the mean of its divisors is an integer number (162750).

Almost surely, 2^4405800 is an apocalyptic number.

4405800 is a gapful number since it is divisible by the number (40) 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 4405800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7812000).

4405800 is an abundant number, since it is smaller than the sum of its proper divisors (11218200).

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

4405800 is a wasteful number, since it uses less digits than its factorization.

4405800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 4405800 is about 2098.9997617913. Note that the first 3 decimals coincide. The cubic root of 4405800 is about 163.9362234666.

The spelling of 4405800 in words is "four million, four hundred five thousand, eight hundred".