38552720 has 20 divisors (see below), whose sum is σ = 89635260. Its totient is φ = 15421056.

The previous prime is 38552713. The next prime is 38552771. The reversal of 38552720 is 2725583.

It can be written as a sum of positive squares in 2 ways, for example, as 13191424 + 25361296 = 3632^2 + 5036^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240875 + ... + 241034.

It is an arithmetic number, because the mean of its divisors is an integer number (4481763).

Almost surely, 2^38552720 is an apocalyptic number.

It is an amenable number.

38552720 is an abundant number, since it is smaller than the sum of its proper divisors (51082540).

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

38552720 is a wasteful number, since it uses less digits than its factorization.

38552720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481922 (or 481916 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 38552720 is about 6209.0836683040. The cubic root of 38552720 is about 337.8197281051.

The spelling of 38552720 in words is "thirty-eight million, five hundred fifty-two thousand, seven hundred twenty".