1863140 has 24 divisors (see below), whose sum is σ = 4119360. Its totient is φ = 705888.

The previous prime is 1863107. The next prime is 1863151. The reversal of 1863140 is 413681.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2072 + ... + 2831.

It is an arithmetic number, because the mean of its divisors is an integer number (171640).

2^1863140 is an apocalyptic number.

1863140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1863140 is an abundant number, since it is smaller than the sum of its proper divisors (2256220).

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

1863140 is a wasteful number, since it uses less digits than its factorization.

1863140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4931 (or 4929 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1863140 is about 1364.9688641138. The cubic root of 1863140 is about 123.0500600427.

The spelling of 1863140 in words is "one million, eight hundred sixty-three thousand, one hundred forty".