306736020 has 72 divisors (see below), whose sum is σ = 934655904. Its totient is φ = 81425088.

The previous prime is 306736009. The next prime is 306736033. The reversal of 306736020 is 20637603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37107 + ... + 44613.

It is an arithmetic number, because the mean of its divisors is an integer number (12981332).

Almost surely, 2^306736020 is an apocalyptic number.

306736020 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 306736020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (467327952).

306736020 is an abundant number, since it is smaller than the sum of its proper divisors (627919884).

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

306736020 is a wasteful number, since it uses less digits than its factorization.

306736020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7749 (or 7744 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 306736020 is about 17513.8807806836. The cubic root of 306736020 is about 674.4062597833.

The spelling of 306736020 in words is "three hundred six million, seven hundred thirty-six thousand, twenty".