38883280 has 20 divisors (see below), whose sum is σ = 90403812. Its totient is φ = 15553280.

The previous prime is 38883277. The next prime is 38883281. The reversal of 38883280 is 8238883.

It can be written as a sum of positive squares in 2 ways, for example, as 8809024 + 30074256 = 2968^2 + 5484^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38883281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242941 + ... + 243100.

Almost surely, 2^38883280 is an apocalyptic number.

It is an amenable number.

38883280 is an abundant number, since it is smaller than the sum of its proper divisors (51520532).

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

38883280 is a wasteful number, since it uses less digits than its factorization.

38883280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486054 (or 486048 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 38883280 is about 6235.6459168237. The cubic root of 38883280 is about 338.7824966669.

The spelling of 38883280 in words is "thirty-eight million, eight hundred eighty-three thousand, two hundred eighty".