1860140 has 24 divisors (see below), whose sum is σ = 4136832. Its totient is φ = 700160.

The previous prime is 1860139. The next prime is 1860143. The reversal of 1860140 is 410681.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1860143) 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, 2396 + ... + 3075.

It is an arithmetic number, because the mean of its divisors is an integer number (172368).

2^1860140 is an apocalyptic number.

1860140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1860140 is an abundant number, since it is smaller than the sum of its proper divisors (2276692).

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

1860140 is a wasteful number, since it uses less digits than its factorization.

1860140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5497 (or 5495 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1860140 is about 1363.8694952231. The cubic root of 1860140 is about 122.9839801112.

The spelling of 1860140 in words is "one million, eight hundred sixty thousand, one hundred forty".