306645030 has 48 divisors (see below), whose sum is σ = 798258240. Its totient is φ = 81671424.

The previous prime is 306645029. The next prime is 306645037. The reversal of 306645030 is 30546603.

It is a junction number, because it is equal to n+sod(n) for n = 306644985 and 306645003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306645037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97726 + ... + 100814.

It is an arithmetic number, because the mean of its divisors is an integer number (16630380).

Almost surely, 2^306645030 is an apocalyptic number.

306645030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

306645030 is an abundant number, since it is smaller than the sum of its proper divisors (491613210).

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

306645030 is a wasteful number, since it uses less digits than its factorization.

306645030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4205 (or 4202 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 306645030 is about 17511.2829341542. The cubic root of 306645030 is about 674.3395680242.

The spelling of 306645030 in words is "three hundred six million, six hundred forty-five thousand, thirty".