1395420 has 48 divisors (see below), whose sum is σ = 4210080. Its totient is φ = 343296.

The previous prime is 1395419. The next prime is 1395439. The reversal of 1395420 is 245931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115 + ... + 1674.

It is an arithmetic number, because the mean of its divisors is an integer number (87710).

2^1395420 is an apocalyptic number.

1395420 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 1395420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2105040).

1395420 is an abundant number, since it is smaller than the sum of its proper divisors (2814660).

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

1395420 is a wasteful number, since it uses less digits than its factorization.

1395420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814 (or 1812 counting only the distinct ones).

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

The square root of 1395420 is about 1181.2789678988. The cubic root of 1395420 is about 111.7467705727.

The spelling of 1395420 in words is "one million, three hundred ninety-five thousand, four hundred twenty".