30450030 has 64 divisors (see below), whose sum is σ = 79349760. Its totient is φ = 7433856.

The previous prime is 30450023. The next prime is 30450053. The reversal of 30450030 is 3005403.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30449991 and 30450009.

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, 63331 + ... + 63809.

It is an arithmetic number, because the mean of its divisors is an integer number (1239840).

Almost surely, 2^30450030 is an apocalyptic number.

30450030 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 30450030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39674880).

30450030 is an abundant number, since it is smaller than the sum of its proper divisors (48899730).

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

30450030 is a wasteful number, since it uses less digits than its factorization.

30450030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665.

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 30450030 is about 5518.1545828293. The cubic root of 30450030 is about 312.2692654122.

Adding to 30450030 its reverse (3005403), we get a palindrome (33455433).

The spelling of 30450030 in words is "thirty million, four hundred fifty thousand, thirty".