305213332 has 6 divisors (see below), whose sum is σ = 534123338. Its totient is φ = 152606664.

The previous prime is 305213329. The next prime is 305213357. The reversal of 305213332 is 233312503.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 257409936 + 47803396 = 16044^2 + 6914^2 .

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 as a sum of consecutive naturals, namely, 38151663 + ... + 38151670.

Almost surely, 2^305213332 is an apocalyptic number.

It is an amenable number.

305213332 is a deficient number, since it is larger than the sum of its proper divisors (228910006).

305213332 is a wasteful number, since it uses less digits than its factorization.

305213332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76303337 (or 76303335 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 305213332 is about 17470.3558063366. The cubic root of 305213332 is about 673.2884535870.

Adding to 305213332 its reverse (233312503), we get a palindrome (538525835).

It can be divided in two parts, 3052 and 13332, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 305213332 in words is "three hundred five million, two hundred thirteen thousand, three hundred thirty-two".