1425688 has 32 divisors (see below), whose sum is σ = 3090960. Its totient is φ = 609280.

The previous prime is 1425667. The next prime is 1425707. The reversal of 1425688 is 8865241.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1020 + ... + 1972.

2^1425688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1425688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1545480).

1425688 is an abundant number, since it is smaller than the sum of its proper divisors (1665272).

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

1425688 is a wasteful number, since it uses less digits than its factorization.

1425688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987 (or 983 counting only the distinct ones).

The product of its digits is 15360, while the sum is 34.

The square root of 1425688 is about 1194.0217753458. The cubic root of 1425688 is about 112.5489630490.

The spelling of 1425688 in words is "one million, four hundred twenty-five thousand, six hundred eighty-eight".