2721912 has 32 divisors (see below), whose sum is σ = 7102080. Its totient is φ = 867680.

The previous prime is 2721899. The next prime is 2721913. The reversal of 2721912 is 2191272.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721913) 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, 1914 + ... + 3017.

It is an arithmetic number, because the mean of its divisors is an integer number (221940).

2^2721912 is an apocalyptic number.

It is an amenable number.

2721912 is an abundant number, since it is smaller than the sum of its proper divisors (4380168).

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

2721912 is a wasteful number, since it uses less digits than its factorization.

2721912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4963 (or 4959 counting only the distinct ones).

The product of its digits is 504, while the sum is 24.

The square root of 2721912 is about 1649.8218085599. The cubic root of 2721912 is about 139.6233412804.

The spelling of 2721912 in words is "two million, seven hundred twenty-one thousand, nine hundred twelve".