38387688 has 64 divisors (see below), whose sum is σ = 99066240. Its totient is φ = 12390144.

The previous prime is 38387681. The next prime is 38387693. The reversal of 38387688 is 88678383.

38387688 = T₂₇ + T₂₈ + ... + T₆₁₂.

It is a super-2 number, since 2×38387688² = 2947229179970688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38387688.

It is not an unprimeable number, because it can be changed into a prime (38387681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130870 + ... + 131162.

It is an arithmetic number, because the mean of its divisors is an integer number (1547910).

Almost surely, 2^38387688 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 38387688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49533120).

38387688 is an abundant number, since it is smaller than the sum of its proper divisors (60678552).

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

38387688 is a wasteful number, since it uses less digits than its factorization.

38387688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 454 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The square root of 38387688 is about 6195.7798540620. The cubic root of 38387688 is about 337.3370055200.

The spelling of 38387688 in words is "thirty-eight million, three hundred eighty-seven thousand, six hundred eighty-eight".