30255030 has 96 divisors (see below), whose sum is σ = 89238240. Its totient is φ = 7050240.

The previous prime is 30254993. The next prime is 30255031. The reversal of 30255030 is 3055203.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30254994 and 30255012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30255031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21550 + ... + 22910.

It is an arithmetic number, because the mean of its divisors is an integer number (929565).

Almost surely, 2^30255030 is an apocalyptic number.

30255030 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 30255030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44619120).

30255030 is an abundant number, since it is smaller than the sum of its proper divisors (58983210).

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

30255030 is a wasteful number, since it uses less digits than its factorization.

30255030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406 (or 1403 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 30255030 is about 5500.4572537199. The cubic root of 30255030 is about 311.6012534260.

The spelling of 30255030 in words is "thirty million, two hundred fifty-five thousand, thirty".