1860020 has 12 divisors (see below), whose sum is σ = 3906084. Its totient is φ = 744000.

The previous prime is 1860017. The next prime is 1860037. The reversal of 1860020 is 200681.

It can be written as a sum of positive squares in 2 ways, for example, as 1157776 + 702244 = 1076^2 + 838^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46481 + ... + 46520.

It is an arithmetic number, because the mean of its divisors is an integer number (325507).

2^1860020 is an apocalyptic number.

1860020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1860020 is an abundant number, since it is smaller than the sum of its proper divisors (2046064).

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

1860020 is a wasteful number, since it uses less digits than its factorization.

1860020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93010 (or 93008 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1860020 is about 1363.8255020346. The cubic root of 1860020 is about 122.9813354366.

The spelling of 1860020 in words is "one million, eight hundred sixty thousand, twenty".