38518530 has 32 divisors (see below), whose sum is σ = 93023424. Its totient is φ = 10207296.

The previous prime is 38518507. The next prime is 38518531. The reversal of 38518530 is 3581583.

38518530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38518491 and 38518500.

It is not an unprimeable number, because it can be changed into a prime (38518531) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 952 + ... + 8828.

It is an arithmetic number, because the mean of its divisors is an integer number (2906982).

Almost surely, 2^38518530 is an apocalyptic number.

38518530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38518530 is an abundant number, since it is smaller than the sum of its proper divisors (54504894).

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

38518530 is a wasteful number, since it uses less digits than its factorization.

38518530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8050.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 38518530 is about 6206.3298333234. The cubic root of 38518530 is about 337.7198348289.

It can be divided in two parts, 385 and 18530, that added together give a triangular number (18915 = T₁₉₄).

The spelling of 38518530 in words is "thirty-eight million, five hundred eighteen thousand, five hundred thirty".