3720306 has 8 divisors (see below), whose sum is σ = 7440624. Its totient is φ = 1240100.

The previous prime is 3720293. The next prime is 3720337. The reversal of 3720306 is 6030273.

It is a sphenic number, since it is the product of 3 distinct primes.

3720306 is an admirable 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, 310020 + ... + 310031.

It is an arithmetic number, because the mean of its divisors is an integer number (930078).

Almost surely, 2^3720306 is an apocalyptic number.

3720306 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3720306 is a wasteful number, since it uses less digits than its factorization.

3720306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620056.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 3720306 is about 1928.8094773720. The cubic root of 3720306 is about 154.9504663088.

Adding to 3720306 its reverse (6030273), we get a palindrome (9750579).

The spelling of 3720306 in words is "three million, seven hundred twenty thousand, three hundred six".