3720272 has 20 divisors (see below), whose sum is σ = 7258836. Its totient is φ = 1847040.

The previous prime is 3720253. The next prime is 3720293. The reversal of 3720272 is 2720273.

It can be written as a sum of positive squares in 2 ways, for example, as 1336336 + 2383936 = 1156^2 + 1544^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1772 + ... + 3252.

Almost surely, 2^3720272 is an apocalyptic number.

It is an amenable number.

3720272 is a deficient number, since it is larger than the sum of its proper divisors (3538564).

3720272 is a wasteful number, since it uses less digits than its factorization.

3720272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646 (or 1640 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 3720272 is about 1928.8006636249. The cubic root of 3720272 is about 154.9499942748.

Subtracting from 3720272 its reverse (2720273), we obtain a palindrome (999999).

The spelling of 3720272 in words is "three million, seven hundred twenty thousand, two hundred seventy-two".