2721938 has 16 divisors (see below), whose sum is σ = 4354560. Its totient is φ = 1271616.

The previous prime is 2721913. The next prime is 2721947. The reversal of 2721938 is 8391272.

2721938 is nontrivially palindromic in base 16.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7403 + ... + 7761.

It is an arithmetic number, because the mean of its divisors is an integer number (272160).

2^2721938 is an apocalyptic number.

2721938 is a deficient number, since it is larger than the sum of its proper divisors (1632622).

2721938 is a wasteful number, since it uses less digits than its factorization.

2721938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601.

The product of its digits is 6048, while the sum is 32.

The square root of 2721938 is about 1649.8296881800. The cubic root of 2721938 is about 139.6237858447.

The spelling of 2721938 in words is "two million, seven hundred twenty-one thousand, nine hundred thirty-eight".