2069820 has 48 divisors (see below), whose sum is σ = 6441120. Its totient is φ = 551808.

The previous prime is 2069819. The next prime is 2069827. The reversal of 2069820 is 289602.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2069827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1377 + ... + 2456.

It is an arithmetic number, because the mean of its divisors is an integer number (134190).

2^2069820 is an apocalyptic number.

2069820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2069820 is an abundant number, since it is smaller than the sum of its proper divisors (4371300).

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

2069820 is a wasteful number, since it uses less digits than its factorization.

2069820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3851 (or 3843 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2069820 is about 1438.6869013097. The cubic root of 2069820 is about 127.4414956503.

The spelling of 2069820 in words is "two million, sixty-nine thousand, eight hundred twenty".