306421244 has 12 divisors (see below), whose sum is σ = 536403504. Its totient is φ = 153163104.

The previous prime is 306421237. The next prime is 306421253. The reversal of 306421244 is 442124603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5432 + ... + 25344.

It is an arithmetic number, because the mean of its divisors is an integer number (44700292).

Almost surely, 2^306421244 is an apocalyptic number.

It is an amenable number.

306421244 is a deficient number, since it is larger than the sum of its proper divisors (229982260).

306421244 is a wasteful number, since it uses less digits than its factorization.

306421244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23764 (or 23762 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 306421244 is about 17504.8920019519. The cubic root of 306421244 is about 674.1754863608.

Adding to 306421244 its reverse (442124603), we get a palindrome (748545847).

The spelling of 306421244 in words is "three hundred six million, four hundred twenty-one thousand, two hundred forty-four".