305400030 has 32 divisors (see below), whose sum is σ = 789342624. Its totient is φ = 75175296.

The previous prime is 305400001. The next prime is 305400041. The reversal of 305400030 is 30004503.

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

It is a junction number, because it is equal to n+sod(n) for n = 305399982 and 305400009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391149 + ... + 391928.

It is an arithmetic number, because the mean of its divisors is an integer number (24666957).

Almost surely, 2^305400030 is an apocalyptic number.

305400030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

305400030 is an abundant number, since it is smaller than the sum of its proper divisors (483942594).

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

305400030 is a wasteful number, since it uses less digits than its factorization.

305400030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783100.

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

The square root of 305400030 is about 17475.6982693110. The cubic root of 305400030 is about 673.4257083886.

Adding to 305400030 its reverse (30004503), we get a palindrome (335404533).

The spelling of 305400030 in words is "three hundred five million, four hundred thousand, thirty".