1940140 has 12 divisors (see below), whose sum is σ = 4074336. Its totient is φ = 776048.

The previous prime is 1940137. The next prime is 1940143. The reversal of 1940140 is 410491.

It is an interprime number because it is at equal distance from previous prime (1940137) and next prime (1940143).

It is not an unprimeable number, because it can be changed into a prime (1940143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48484 + ... + 48523.

It is an arithmetic number, because the mean of its divisors is an integer number (339528).

2^1940140 is an apocalyptic number.

1940140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1940140 is an abundant number, since it is smaller than the sum of its proper divisors (2134196).

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

1940140 is a wasteful number, since it uses less digits than its factorization.

1940140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97016 (or 97014 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1940140 is about 1392.8890838828. The cubic root of 1940140 is about 124.7223704981.

It can be divided in two parts, 1940 and 140, that added together give a triangular number (2080 = T₆₄).

The spelling of 1940140 in words is "one million, nine hundred forty thousand, one hundred forty".