1325428 has 24 divisors (see below), whose sum is σ = 2540160. Its totient is φ = 601440.

The previous prime is 1325419. The next prime is 1325431. The reversal of 1325428 is 8245231.

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, 3513 + ... + 3871.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

2^1325428 is an apocalyptic number.

It is an amenable number.

1325428 is a deficient number, since it is larger than the sum of its proper divisors (1214732).

1325428 is a wasteful number, since it uses less digits than its factorization.

1325428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 445 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 1325428 is about 1151.2723396312. The cubic root of 1325428 is about 109.8462866794.

The spelling of 1325428 in words is "one million, three hundred twenty-five thousand, four hundred twenty-eight".