30690030 has 64 divisors (see below), whose sum is σ = 85639680. Its totient is φ = 6893184.

The previous prime is 30690029. The next prime is 30690041. The reversal of 30690030 is 3009603.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 30689979 and 30690006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11152 + ... + 13628.

It is an arithmetic number, because the mean of its divisors is an integer number (1338120).

Almost surely, 2^30690030 is an apocalyptic number.

30690030 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 30690030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42819840).

30690030 is an abundant number, since it is smaller than the sum of its proper divisors (54949650).

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

30690030 is a wasteful number, since it uses less digits than its factorization.

30690030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 30690030 is about 5539.8583014370. The cubic root of 30690030 is about 313.0875304267.

Adding to 30690030 its reverse (3009603), we get a palindrome (33699633).

The spelling of 30690030 in words is "thirty million, six hundred ninety thousand, thirty".