425993800 has 48 divisors (see below), whose sum is σ = 999573300. Its totient is φ = 168825600.

The previous prime is 425993797. The next prime is 425993809. The reversal of 425993800 is 8399524.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 140991876 + 285001924 = 11874^2 + 16882^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (425993809) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 12030 + ... + 31570.

Almost surely, 2^425993800 is an apocalyptic number.

425993800 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 425993800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499786650).

425993800 is an abundant number, since it is smaller than the sum of its proper divisors (573579500).

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

425993800 is a wasteful number, since it uses less digits than its factorization.

425993800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19666 (or 19657 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 425993800 is about 20639.6172445130. The cubic root of 425993800 is about 752.4328700284.

The spelling of 425993800 in words is "four hundred twenty-five million, nine hundred ninety-three thousand, eight hundred".