1425600 has 210 divisors, whose sum is σ = 5716524. Its totient is φ = 345600.

The previous prime is 1425583. The next prime is 1425601. The reversal of 1425600 is 65241.

Added to its reverse (65241) it gives a square (1490841 = 1221²).

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1425601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 129595 + ... + 129605.

2^1425600 is an apocalyptic number.

1425600 is a gapful number since it is divisible by the number (10) 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 1425600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2858262).

1425600 is an abundant number, since it is smaller than the sum of its proper divisors (4290924).

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

1425600 is a wasteful number, since it uses less digits than its factorization.

1425600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45 (or 21 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1425600 is about 1193.9849245279. The cubic root of 1425600 is about 112.5466473220.

Adding to 1425600 its reverse (65241), we get a square (1490841 = 1221²).

It can be divided in two parts, 1425 and 600, that added together give a square (2025 = 45²).

The spelling of 1425600 in words is "one million, four hundred twenty-five thousand, six hundred".