306103820 has 24 divisors (see below), whose sum is σ = 701256528. Its totient is φ = 111310400.

The previous prime is 306103817. The next prime is 306103823. The reversal of 306103820 is 28301603.

It is an interprime number because it is at equal distance from previous prime (306103817) and next prime (306103823).

It is not an unprimeable number, because it can be changed into a prime (306103823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695471 + ... + 695910.

It is an arithmetic number, because the mean of its divisors is an integer number (29219022).

Almost surely, 2^306103820 is an apocalyptic number.

It is an amenable number.

306103820 is an abundant number, since it is smaller than the sum of its proper divisors (395152708).

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

306103820 is a wasteful number, since it uses less digits than its factorization.

306103820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391401 (or 1391399 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 306103820 is about 17495.8229300596. The cubic root of 306103820 is about 673.9426114967.

The spelling of 306103820 in words is "three hundred six million, one hundred three thousand, eight hundred twenty".