308030205 has 32 divisors (see below), whose sum is σ = 564480000. Its totient is φ = 140507712.

The previous prime is 308030183. The next prime is 308030213. The reversal of 308030205 is 502030803.

It is not a de Polignac number, because 308030205 - 2⁷ = 308030077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 49456 + ... + 55334.

It is an arithmetic number, because the mean of its divisors is an integer number (17640000).

Almost surely, 2^308030205 is an apocalyptic number.

308030205 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

308030205 is a deficient number, since it is larger than the sum of its proper divisors (256449795).

308030205 is a wasteful number, since it uses less digits than its factorization.

308030205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6393.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 308030205 is about 17550.7892984903. The cubic root of 308030205 is about 675.3534171200.

The spelling of 308030205 in words is "three hundred eight million, thirty thousand, two hundred five".