30000030 has 32 divisors (see below), whose sum is σ = 72720288. Its totient is φ = 7920000.

The previous prime is 30000023. The next prime is 30000037. The reversal of 30000030 is 3000003.

It is an interprime number because it is at equal distance from previous prime (30000023) and next prime (30000037).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 29999973 and 30000018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1921 + ... + 7980.

It is an arithmetic number, because the mean of its divisors is an integer number (2272509).

Almost surely, 2^30000030 is an apocalyptic number.

30000030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30000030 is an abundant number, since it is smaller than the sum of its proper divisors (42720258).

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

30000030 is a wasteful number, since it uses less digits than its factorization.

30000030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10012.

The product of its (nonzero) digits is 9, while the sum is 6.

The square root of 30000030 is about 5477.2283136638. The cubic root of 30000030 is about 310.7233541698.

Adding to 30000030 its reverse (3000003), we get a palindrome (33000033).

It can be divided in two parts, 300000 and 30, that multiplied together give a square (9000000 = 3000²).

The spelling of 30000030 in words is "thirty million, thirty", and thus it is an aban number, an eban number, and an uban number.