3990030 has 64 divisors (see below), whose sum is σ = 10637568. Its totient is φ = 949760.

The previous prime is 3990029. The next prime is 3990031. The reversal of 3990030 is 300993.

3990030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3990029) and next prime (3990031).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3990031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35254 + ... + 35366.

It is an arithmetic number, because the mean of its divisors is an integer number (166212).

Almost surely, 2^3990030 is an apocalyptic number.

3990030 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 3990030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5318784).

3990030 is an abundant number, since it is smaller than the sum of its proper divisors (6647538).

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

3990030 is a wasteful number, since it uses less digits than its factorization.

3990030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241.

The product of its (nonzero) digits is 729, while the sum is 24.

The square root of 3990030 is about 1997.5059449223. The cubic root of 3990030 is about 158.6081088983.

The spelling of 3990030 in words is "three million, nine hundred ninety thousand, thirty".