2157300 has 144 divisors (see below), whose sum is σ = 7499520. Its totient is φ = 529920.

The previous prime is 2157293. The next prime is 2157301. The reversal of 2157300 is 37512.

2157300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45877 + ... + 45923.

It is an arithmetic number, because the mean of its divisors is an integer number (52080).

2^2157300 is an apocalyptic number.

2157300 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 2157300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3749760).

2157300 is an abundant number, since it is smaller than the sum of its proper divisors (5342220).

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

2157300 is a wasteful number, since it uses less digits than its factorization.

2157300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 2157300 is about 1468.7749997872. The cubic root of 2157300 is about 129.2121980770.

The spelling of 2157300 in words is "two million, one hundred fifty-seven thousand, three hundred".