425200400 has 30 divisors (see below), whose sum is σ = 1021544922. Its totient is φ = 170080000.

The previous prime is 425200393. The next prime is 425200403. The reversal of 425200400 is 4002524.

It can be written as a sum of positive squares in 3 ways, for example, as 63744256 + 361456144 = 7984^2 + 19012^2 .

It is not an unprimeable number, because it can be changed into a prime (425200403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 531101 + ... + 531900.

Almost surely, 2^425200400 is an apocalyptic number.

425200400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425200400 is an abundant number, since it is smaller than the sum of its proper divisors (596344522).

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

425200400 is a wasteful number, since it uses less digits than its factorization.

425200400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063019 (or 1063008 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 425200400 is about 20620.3879691920. The cubic root of 425200400 is about 751.9654522381.

Adding to 425200400 its reverse (4002524), we get a palindrome (429202924).

It can be divided in two parts, 4 and 25200400, that multiplied together give a square (100801600 = 10040²).

The spelling of 425200400 in words is "four hundred twenty-five million, two hundred thousand, four hundred".