3990330 has 32 divisors (see below), whose sum is σ = 10641600. Its totient is φ = 1064016.

The previous prime is 3990307. The next prime is 3990331. The reversal of 3990330 is 330993.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 3990294 and 3990303.

It is not an unprimeable number, because it can be changed into a prime (3990331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7120 + ... + 7659.

It is an arithmetic number, because the mean of its divisors is an integer number (332550).

Almost surely, 2^3990330 is an apocalyptic number.

3990330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3990330 is an abundant number, since it is smaller than the sum of its proper divisors (6651270).

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

3990330 is a wasteful number, since it uses less digits than its factorization.

3990330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14795 (or 14789 counting only the distinct ones).

The product of its (nonzero) digits is 2187, while the sum is 27.

The square root of 3990330 is about 1997.5810371547. The cubic root of 3990330 is about 158.6120839094.

The spelling of 3990330 in words is "three million, nine hundred ninety thousand, three hundred thirty".