305342152 has 8 divisors (see below), whose sum is σ = 572516550. Its totient is φ = 152671072.

The previous prime is 305342123. The next prime is 305342171. The reversal of 305342152 is 251243503.

It can be written as a sum of positive squares in only one way, i.e., 283383556 + 21958596 = 16834^2 + 4686^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×305342152² = 186467659575982208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19083877 + ... + 19083892.

Almost surely, 2^305342152 is an apocalyptic number.

It is an amenable number.

305342152 is a deficient number, since it is larger than the sum of its proper divisors (267174398).

305342152 is a wasteful number, since it uses less digits than its factorization.

305342152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38167775 (or 38167771 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 305342152 is about 17474.0422341255. The cubic root of 305342152 is about 673.3831641933.

Adding to 305342152 its reverse (251243503), we get a palindrome (556585655).

The spelling of 305342152 in words is "three hundred five million, three hundred forty-two thousand, one hundred fifty-two".