2051700 has 72 divisors (see below), whose sum is σ = 6791232. Its totient is φ = 468480.

The previous prime is 2051689. The next prime is 2051701. The reversal of 2051700 is 71502.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2051700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051701) 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 23 ways as a sum of consecutive naturals, for example, 1612 + ... + 2588.

2^2051700 is an apocalyptic number.

2051700 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 2051700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3395616).

2051700 is an abundant number, since it is smaller than the sum of its proper divisors (4739532).

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

2051700 is a wasteful number, since it uses less digits than its factorization.

2051700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001 (or 994 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 15.

The square root of 2051700 is about 1432.3756490530. The cubic root of 2051700 is about 127.0685145013.

The spelling of 2051700 in words is "two million, fifty-one thousand, seven hundred".