1860040 has 96 divisors (see below), whose sum is σ = 5314680. Its totient is φ = 580608.

The previous prime is 1860037. The next prime is 1860059. The reversal of 1860040 is 400681.

1860040 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in 4 ways, for example, as 1223236 + 636804 = 1106^2 + 798^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25444 + ... + 25516.

2^1860040 is an apocalyptic number.

1860040 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 1860040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2657340).

1860040 is an abundant number, since it is smaller than the sum of its proper divisors (3454640).

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

1860040 is a wasteful number, since it uses less digits than its factorization.

1860040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1860040 is about 1363.8328343312. The cubic root of 1860040 is about 122.9817762236.

The spelling of 1860040 in words is "one million, eight hundred sixty thousand, forty".