404025800 has 48 divisors (see below), whose sum is σ = 952262340. Its totient is φ = 159390720.

The previous prime is 404025707. The next prime is 404025803. The reversal of 404025800 is 8520404.

It can be written as a sum of positive squares in 6 ways, for example, as 42797764 + 361228036 = 6542^2 + 19006^2 .

It is not an unprimeable number, because it can be changed into a prime (404025803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 764 + ... + 28436.

Almost surely, 2^404025800 is an apocalyptic number.

404025800 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 404025800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (476131170).

404025800 is an abundant number, since it is smaller than the sum of its proper divisors (548236540).

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

404025800 is a wasteful number, since it uses less digits than its factorization.

404025800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27762 (or 27753 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 404025800 is about 20100.3930309832. The cubic root of 404025800 is about 739.2699154353.

The spelling of 404025800 in words is "four hundred four million, twenty-five thousand, eight hundred".