308946225 has 36 divisors (see below), whose sum is σ = 594192624. Its totient is φ = 141230880.

The previous prime is 308946223. The next prime is 308946241. The reversal of 308946225 is 522649803.

It is a happy number.

It is not a de Polignac number, because 308946225 - 2¹ = 308946223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (308946223) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 38359 + ... + 45708.

Almost surely, 2^308946225 is an apocalyptic number.

308946225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

308946225 is a deficient number, since it is larger than the sum of its proper divisors (285246399).

308946225 is a wasteful number, since it uses less digits than its factorization.

308946225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84094 (or 84082 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 308946225 is about 17576.8661882601. The cubic root of 308946225 is about 676.0222097730.

The spelling of 308946225 in words is "three hundred eight million, nine hundred forty-six thousand, two hundred twenty-five".