1325240 has 32 divisors (see below), whose sum is σ = 3408480. Its totient is φ = 454272.

The previous prime is 1325227. The next prime is 1325251. The reversal of 1325240 is 425231.

It is a super-2 number, since 2×1325240² = 3512522115200, which contains 22 as substring.

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, 2087 + ... + 2646.

It is an arithmetic number, because the mean of its divisors is an integer number (106515).

2^1325240 is an apocalyptic number.

1325240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1325240 is an abundant number, since it is smaller than the sum of its proper divisors (2083240).

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

1325240 is a wasteful number, since it uses less digits than its factorization.

1325240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4751 (or 4747 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1325240 is about 1151.1906879401. The cubic root of 1325240 is about 109.8410928657.

Subtracting from 1325240 its reverse (425231), we obtain a palindrome (900009).

The spelling of 1325240 in words is "one million, three hundred twenty-five thousand, two hundred forty".