2061900 has 108 divisors (see below), whose sum is σ = 6770400. Its totient is φ = 524160.

The previous prime is 2061887. The next prime is 2061907. The reversal of 2061900 is 91602.

It is a super-2 number, since 2×2061900² = 8502863220000, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (2061907) 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 35 ways as a sum of consecutive naturals, for example, 26061 + ... + 26139.

2^2061900 is an apocalyptic number.

2061900 is a gapful number since it is divisible by the number (20) 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 2061900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3385200).

2061900 is an abundant number, since it is smaller than the sum of its proper divisors (4708500).

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

2061900 is a wasteful number, since it uses less digits than its factorization.

2061900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 2061900 is about 1435.9317532529. The cubic root of 2061900 is about 127.2787396665.

The spelling of 2061900 in words is "two million, sixty-one thousand, nine hundred".