3720226 has 16 divisors (see below), whose sum is σ = 5743584. Its totient is φ = 1806624.

The previous prime is 3720209. The next prime is 3720247. The reversal of 3720226 is 6220273.

It is a junction number, because it is equal to n+sod(n) for n = 3720197 and 3720206.

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, 11965 + ... + 12271.

It is an arithmetic number, because the mean of its divisors is an integer number (358974).

Almost surely, 2^3720226 is an apocalyptic number.

3720226 is a deficient number, since it is larger than the sum of its proper divisors (2023358).

3720226 is a wasteful number, since it uses less digits than its factorization.

3720226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 3720226 is about 1928.7887390795. The cubic root of 3720226 is about 154.9493556361.

Adding to 3720226 its reverse (6220273), we get a palindrome (9940499).

The spelling of 3720226 in words is "three million, seven hundred twenty thousand, two hundred twenty-six".