306906228 has 36 divisors (see below), whose sum is σ = 777984480. Its totient is φ = 102012816.

The previous prime is 306906211. The next prime is 306906247. The reversal of 306906228 is 822609603.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 306906192 and 306906201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1051 + ... + 24797.

It is an arithmetic number, because the mean of its divisors is an integer number (21610680).

Almost surely, 2^306906228 is an apocalyptic number.

It is an amenable number.

306906228 is an abundant number, since it is smaller than the sum of its proper divisors (471078252).

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

306906228 is a wasteful number, since it uses less digits than its factorization.

306906228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24116 (or 24111 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 306906228 is about 17518.7393382058. The cubic root of 306906228 is about 674.5309795287.

The spelling of 306906228 in words is "three hundred six million, nine hundred six thousand, two hundred twenty-eight".