425421200 has 30 divisors (see below), whose sum is σ = 1022075394. Its totient is φ = 170168320.

The previous prime is 425421197. The next prime is 425421203. The reversal of 425421200 is 2124524.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (425421197) and next prime (425421203).

It can be written as a sum of positive squares in 3 ways, for example, as 71824 + 425349376 = 268^2 + 20624^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (425421203) 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, 531377 + ... + 532176.

Almost surely, 2^425421200 is an apocalyptic number.

425421200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425421200 is an abundant number, since it is smaller than the sum of its proper divisors (596654194).

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

425421200 is a wasteful number, since it uses less digits than its factorization.

425421200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063571 (or 1063560 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 425421200 is about 20625.7411988030. The cubic root of 425421200 is about 752.0955910625.

Adding to 425421200 its reverse (2124524), we get a palindrome (427545724).

The spelling of 425421200 in words is "four hundred twenty-five million, four hundred twenty-one thousand, two hundred".