38885620 has 12 divisors (see below), whose sum is σ = 81659844. Its totient is φ = 15554240.

The previous prime is 38885611. The next prime is 38885621. The reversal of 38885620 is 2658883.

It can be written as a sum of positive squares in 2 ways, for example, as 4639716 + 34245904 = 2154^2 + 5852^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38885621) 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, 972121 + ... + 972160.

It is an arithmetic number, because the mean of its divisors is an integer number (6804987).

Almost surely, 2^38885620 is an apocalyptic number.

It is an amenable number.

38885620 is an abundant number, since it is smaller than the sum of its proper divisors (42774224).

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

38885620 is a wasteful number, since it uses less digits than its factorization.

38885620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944290 (or 1944288 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 38885620 is about 6235.8335449240. The cubic root of 38885620 is about 338.7892925197.

The spelling of 38885620 in words is "thirty-eight million, eight hundred eighty-five thousand, six hundred twenty".