3720330 has 48 divisors (see below), whose sum is σ = 10037664. Its totient is φ = 991440.

The previous prime is 3720293. The next prime is 3720337. The reversal of 3720330 is 330273.

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

It is not an unprimeable number, because it can be changed into a prime (3720337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1665 + ... + 3195.

It is an arithmetic number, because the mean of its divisors is an integer number (209118).

Almost surely, 2^3720330 is an apocalyptic number.

3720330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3720330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5018832).

3720330 is an abundant number, since it is smaller than the sum of its proper divisors (6317334).

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

3720330 is a wasteful number, since it uses less digits than its factorization.

3720330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553 (or 1541 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 18.

The square root of 3720330 is about 1928.8156988162. The cubic root of 3720330 is about 154.9507995074.

The spelling of 3720330 in words is "three million, seven hundred twenty thousand, three hundred thirty".