1852020 has 36 divisors (see below), whose sum is σ = 5618340. Its totient is φ = 493824.

The previous prime is 1852013. The next prime is 1852049. The reversal of 1852020 is 202581.

It can be written as a sum of positive squares in 2 ways, for example, as 1205604 + 646416 = 1098^2 + 804^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1851984 and 1852002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4965 + ... + 5324.

It is an arithmetic number, because the mean of its divisors is an integer number (156065).

2^1852020 is an apocalyptic number.

1852020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1852020 is an abundant number, since it is smaller than the sum of its proper divisors (3766320).

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

1852020 is a wasteful number, since it uses less digits than its factorization.

1852020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10304 (or 10299 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1852020 is about 1360.8894150518. The cubic root of 1852020 is about 122.8047666206.

The spelling of 1852020 in words is "one million, eight hundred fifty-two thousand, twenty".