2721124 has 24 divisors (see below), whose sum is σ = 5485760. Its totient is φ = 1156896.

The previous prime is 2721119. The next prime is 2721127. The reversal of 2721124 is 4211272.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2721127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4087 + ... + 4705.

2^2721124 is an apocalyptic number.

It is an amenable number.

2721124 is an abundant number, since it is smaller than the sum of its proper divisors (2764636).

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

2721124 is a wasteful number, since it uses less digits than its factorization.

2721124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787 (or 785 counting only the distinct ones).

The product of its digits is 224, while the sum is 19.

The square root of 2721124 is about 1649.5829776037. The cubic root of 2721124 is about 139.6098662168.

Adding to 2721124 its reverse (4211272), we get a palindrome (6932396).

The spelling of 2721124 in words is "two million, seven hundred twenty-one thousand, one hundred twenty-four".