1995240 has 64 divisors (see below), whose sum is σ = 6451200. Its totient is φ = 490752.

The previous prime is 1995223. The next prime is 1995263. The reversal of 1995240 is 425991.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1995198 and 1995207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921 + ... + 2199.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

2^1995240 is an apocalyptic number.

1995240 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 1995240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3225600).

1995240 is an abundant number, since it is smaller than the sum of its proper divisors (4455960).

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

1995240 is a wasteful number, since it uses less digits than its factorization.

1995240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306 (or 1302 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1995240 is about 1412.5296457066. The cubic root of 1995240 is about 125.8920718512.

It can be divided in two parts, 19 and 95240, that added together give a palindrome (95259).

The spelling of 1995240 in words is "one million, nine hundred ninety-five thousand, two hundred forty".