2721300 has 72 divisors (see below), whose sum is σ = 8082816. Its totient is φ = 706560.

The previous prime is 2721259. The next prime is 2721307. The reversal of 2721300 is 31272.

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 2721300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14004 + ... + 14196.

2^2721300 is an apocalyptic number.

2721300 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 2721300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4041408).

2721300 is an abundant number, since it is smaller than the sum of its proper divisors (5361516).

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

2721300 is a wasteful number, since it uses less digits than its factorization.

2721300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 2721300 is about 1649.6363235574. The cubic root of 2721300 is about 139.6128761012.

Adding to 2721300 its reverse (31272), we get a palindrome (2752572).

The spelling of 2721300 in words is "two million, seven hundred twenty-one thousand, three hundred".