30102030 has 80 divisors (see below), whose sum is σ = 92521440. Its totient is φ = 6879168.

The previous prime is 30101999. The next prime is 30102031. The reversal of 30102030 is 3020103.

It is a happy number.

It is a super-2 number, since 2×30102030² = 1812264420241800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30102031) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3016 + ... + 8324.

It is an arithmetic number, because the mean of its divisors is an integer number (1156518).

Almost surely, 2^30102030 is an apocalyptic number.

30102030 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 30102030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46260720).

30102030 is an abundant number, since it is smaller than the sum of its proper divisors (62419410).

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

30102030 is a wasteful number, since it uses less digits than its factorization.

30102030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5335 (or 5326 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 30102030 is about 5486.5316913329. The cubic root of 30102030 is about 311.0751085984.

Adding to 30102030 its reverse (3020103), we get a palindrome (33122133).

The spelling of 30102030 in words is "thirty million, one hundred two thousand, thirty".