306000000 has 336 divisors, whose sum is σ = 1165414770. Its totient is φ = 76800000.

The previous prime is 305999927. The next prime is 306000011. The reversal of 306000000 is 603.

It can be written as a sum of positive squares in 7 ways, for example, as 118200384 + 187799616 = 10872^2 + 13704^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 17999992 + ... + 18000008.

Almost surely, 2^306000000 is an apocalyptic number.

306000000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 306000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (582707385).

306000000 is an abundant number, since it is smaller than the sum of its proper divisors (859414770).

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

306000000 is an frugal number, since it uses more digits than its factorization.

306000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 306000000 is about 17492.8556845359. The cubic root of 306000000 is about 673.8664100805.

Adding to 306000000 its reverse (603), we get a palindrome (306000603).

The spelling of 306000000 in words is "three hundred six million", and thus it is an aban number.