38687130 has 48 divisors (see below), whose sum is σ = 101818080. Its totient is φ = 10190304.

The previous prime is 38687123. The next prime is 38687137. The reversal of 38687130 is 3178683.

It is an interprime number because it is at equal distance from previous prime (38687123) and next prime (38687137).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38687137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4881 + ... + 10059.

It is an arithmetic number, because the mean of its divisors is an integer number (2121210).

Almost surely, 2^38687130 is an apocalyptic number.

38687130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38687130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50909040).

38687130 is an abundant number, since it is smaller than the sum of its proper divisors (63130950).

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

38687130 is a wasteful number, since it uses less digits than its factorization.

38687130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5275 (or 5272 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 38687130 is about 6219.8979091300. The cubic root of 38687130 is about 338.2118637181.

The spelling of 38687130 in words is "thirty-eight million, six hundred eighty-seven thousand, one hundred thirty".