3720312 has 48 divisors (see below), whose sum is σ = 10169640. Its totient is φ = 1228608.

The previous prime is 3720293. The next prime is 3720337. The reversal of 3720312 is 2130273.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11578 + ... + 11894.

Almost surely, 2^3720312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3720312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5084820).

3720312 is an abundant number, since it is smaller than the sum of its proper divisors (6449328).

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

3720312 is a wasteful number, since it uses less digits than its factorization.

3720312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 3720312 is about 1928.8110327349. The cubic root of 3720312 is about 154.9505496086.

Adding to 3720312 its reverse (2130273), we get a palindrome (5850585).

The spelling of 3720312 in words is "three million, seven hundred twenty thousand, three hundred twelve".