2139300 has 54 divisors (see below), whose sum is σ = 6708338. Its totient is φ = 570240.

The previous prime is 2139283. The next prime is 2139307. The reversal of 2139300 is 39312.

It can be written as a sum of positive squares in 3 ways, for example, as 82944 + 2056356 = 288^2 + 1434^2 .

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 (2139307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 289 + ... + 2088.

2^2139300 is an apocalyptic number.

2139300 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 2139300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3354169).

2139300 is an abundant number, since it is smaller than the sum of its proper divisors (4569038).

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

2139300 is a wasteful number, since it uses less digits than its factorization.

2139300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397 (or 2387 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 2139300 is about 1462.6346091899. The cubic root of 2139300 is about 128.8518219257.

The spelling of 2139300 in words is "two million, one hundred thirty-nine thousand, three hundred".