38305272 has 32 divisors (see below), whose sum is σ = 95961600. Its totient is φ = 12741984.

The previous prime is 38305237. The next prime is 38305277. The reversal of 38305272 is 27250383.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38305277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12729 + ... + 15447.

It is an arithmetic number, because the mean of its divisors is an integer number (2998800).

Almost surely, 2^38305272 is an apocalyptic number.

It is an amenable number.

38305272 is an abundant number, since it is smaller than the sum of its proper divisors (57656328).

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

38305272 is a wasteful number, since it uses less digits than its factorization.

38305272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3315 (or 3311 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 38305272 is about 6189.1253016884. The cubic root of 38305272 is about 337.0954186273.

The spelling of 38305272 in words is "thirty-eight million, three hundred five thousand, two hundred seventy-two".