1395940 has 72 divisors (see below), whose sum is σ = 3689280. Its totient is φ = 434304.

The previous prime is 1395923. The next prime is 1395943. The reversal of 1395940 is 495931.

1395940 = T₉₁ + T₉₂ + ... + T₂₀₈.

It is not an unprimeable number, because it can be changed into a prime (1395943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23631 + ... + 23689.

It is an arithmetic number, because the mean of its divisors is an integer number (51240).

2^1395940 is an apocalyptic number.

1395940 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 1395940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1844640).

1395940 is an abundant number, since it is smaller than the sum of its proper divisors (2293340).

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

1395940 is a wasteful number, since it uses less digits than its factorization.

1395940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 1395940 is about 1181.4990478202. The cubic root of 1395940 is about 111.7606495731.

Subtracting from 1395940 its reverse (495931), we obtain a palindrome (900009).

The spelling of 1395940 in words is "one million, three hundred ninety-five thousand, nine hundred forty".