308427225 has 12 divisors (see below), whose sum is σ = 509933136. Its totient is φ = 164494480.

The previous prime is 308427211. The next prime is 308427233. The reversal of 308427225 is 522724803.

It is a de Polignac number, because none of the positive numbers 2^k-308427225 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2056107 + ... + 2056256.

It is an arithmetic number, because the mean of its divisors is an integer number (42494428).

Almost surely, 2^308427225 is an apocalyptic number.

It is an amenable number.

308427225 is a deficient number, since it is larger than the sum of its proper divisors (201505911).

308427225 is a wasteful number, since it uses less digits than its factorization.

308427225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112376 (or 4112371 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 308427225 is about 17562.0962587044. The cubic root of 308427225 is about 675.6434467932.

The spelling of 308427225 in words is "three hundred eight million, four hundred twenty-seven thousand, two hundred twenty-five".