1425680 has 40 divisors (see below), whose sum is σ = 3374784. Its totient is φ = 560000.

The previous prime is 1425667. The next prime is 1425707. The reversal of 1425680 is 865241.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5555 + ... + 5805.

2^1425680 is an apocalyptic number.

1425680 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 1425680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1687392).

1425680 is an abundant number, since it is smaller than the sum of its proper divisors (1949104).

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

1425680 is a wasteful number, since it uses less digits than its factorization.

1425680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1425680 is about 1194.0184253185. The cubic root of 1425680 is about 112.5487525323.

The spelling of 1425680 in words is "one million, four hundred twenty-five thousand, six hundred eighty".