308536272 has 120 divisors (see below), whose sum is σ = 951144480. Its totient is φ = 92586240.

The previous prime is 308536271. The next prime is 308536289. The reversal of 308536272 is 272635803.

It is a super-2 number, since 2×308536272² = 190389262279315968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308536271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171763 + ... + 173549.

It is an arithmetic number, because the mean of its divisors is an integer number (7926204).

Almost surely, 2^308536272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 308536272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (475572240).

308536272 is an abundant number, since it is smaller than the sum of its proper divisors (642608208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

308536272 is a wasteful number, since it uses less digits than its factorization.

308536272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921 (or 1912 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 308536272 is about 17565.2005966342. The cubic root of 308536272 is about 675.7230638564.

The spelling of 308536272 in words is "three hundred eight million, five hundred thirty-six thousand, two hundred seventy-two".