1995140 has 24 divisors (see below), whose sum is σ = 4788672. Its totient is φ = 684000.

The previous prime is 1995139. The next prime is 1995143. The reversal of 1995140 is 415991.

1995140 = T₃₂₀ + T₃₂₁ + ... + T₃₅₄.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1995143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6986 + ... + 7265.

It is an arithmetic number, because the mean of its divisors is an integer number (199528).

2^1995140 is an apocalyptic number.

1995140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1995140 is an abundant number, since it is smaller than the sum of its proper divisors (2793532).

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

1995140 is a wasteful number, since it uses less digits than its factorization.

1995140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14267 (or 14265 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 1995140 is about 1412.4942477759. The cubic root of 1995140 is about 125.8899686092.

It can be divided in two parts, 19951 and 40, that added together give a palindrome (19991).

The spelling of 1995140 in words is "one million, nine hundred ninety-five thousand, one hundred forty".