308725268 has 6 divisors (see below), whose sum is σ = 540269226. Its totient is φ = 154362632.

The previous prime is 308725267. The next prime is 308725279. The reversal of 308725268 is 862527803.

It can be written as a sum of positive squares in only one way, i.e., 205865104 + 102860164 = 14348^2 + 10142^2 .

It is a super-2 number, since 2×308725268² = 190622582203343648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308725267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38590655 + ... + 38590662.

It is an arithmetic number, because the mean of its divisors is an integer number (90044871).

Almost surely, 2^308725268 is an apocalyptic number.

It is an amenable number.

308725268 is a deficient number, since it is larger than the sum of its proper divisors (231543958).

308725268 is a wasteful number, since it uses less digits than its factorization.

308725268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77181321 (or 77181319 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 308725268 is about 17570.5796147993. The cubic root of 308725268 is about 675.8610086194.

The spelling of 308725268 in words is "three hundred eight million, seven hundred twenty-five thousand, two hundred sixty-eight".