425543400 has 144 divisors (see below), whose sum is σ = 1453701600. Its totient is φ = 111527040.

The previous prime is 425543389. The next prime is 425543411. The reversal of 425543400 is 4345524.

425543400 is a `hidden beast` number, since 4 + 255 + 4 + 3 + 400 = 666.

It is an interprime number because it is at equal distance from previous prime (425543389) and next prime (425543411).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 104197 + ... + 108203.

It is an arithmetic number, because the mean of its divisors is an integer number (10095150).

Almost surely, 2^425543400 is an apocalyptic number.

425543400 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 425543400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (726850800).

425543400 is an abundant number, since it is smaller than the sum of its proper divisors (1028158200).

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

425543400 is a wasteful number, since it uses less digits than its factorization.

425543400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4088 (or 4076 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 425543400 is about 20628.7033038919. The cubic root of 425543400 is about 752.1675960016.

Adding to 425543400 its reverse (4345524), we get a palindrome (429888924).

It can be divided in two parts, 42554 and 3400, that added together give a palindrome (45954).

The spelling of 425543400 in words is "four hundred twenty-five million, five hundred forty-three thousand, four hundred".