306946620 has 72 divisors (see below), whose sum is σ = 939831984. Its totient is φ = 81082368.

The previous prime is 306946597. The next prime is 306946639. The reversal of 306946620 is 26649603.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 11292 + ... + 27228.

It is an arithmetic number, because the mean of its divisors is an integer number (13053222).

Almost surely, 2^306946620 is an apocalyptic number.

306946620 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 306946620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469915992).

306946620 is an abundant number, since it is smaller than the sum of its proper divisors (632885364).

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

306946620 is a wasteful number, since it uses less digits than its factorization.

306946620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16059 (or 16054 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 306946620 is about 17519.8921229556. The cubic root of 306946620 is about 674.5605699569.

The spelling of 306946620 in words is "three hundred six million, nine hundred forty-six thousand, six hundred twenty".