1395240 has 128 divisors (see below), whose sum is σ = 5253120. Its totient is φ = 288000.

The previous prime is 1395223. The next prime is 1395263. The reversal of 1395240 is 425931.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1395240.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9165 + ... + 9315.

It is an arithmetic number, because the mean of its divisors is an integer number (41040).

2^1395240 is an apocalyptic number.

1395240 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 1395240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2626560).

1395240 is an abundant number, since it is smaller than the sum of its proper divisors (3857880).

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

1395240 is a wasteful number, since it uses less digits than its factorization.

1395240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1395240 is about 1181.2027768339. The cubic root of 1395240 is about 111.7419655000.

The spelling of 1395240 in words is "one million, three hundred ninety-five thousand, two hundred forty".