38512530 has 192 divisors, whose sum is σ = 124104960. Its totient is φ = 8467200.

The previous prime is 38512519. The next prime is 38512541. The reversal of 38512530 is 3521583.

38512530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (38512519) and next prime (38512541).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 38512494 and 38512503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 542395 + ... + 542465.

It is an arithmetic number, because the mean of its divisors is an integer number (646380).

Almost surely, 2^38512530 is an apocalyptic number.

38512530 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 38512530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62052480).

38512530 is an abundant number, since it is smaller than the sum of its proper divisors (85592430).

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

38512530 is a wasteful number, since it uses less digits than its factorization.

38512530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 38512530 is about 6205.8464370302. The cubic root of 38512530 is about 337.7022984706.

The spelling of 38512530 in words is "thirty-eight million, five hundred twelve thousand, five hundred thirty".