38509012 has 24 divisors (see below), whose sum is σ = 72225216. Its totient is φ = 17900928.

The previous prime is 38509001. The next prime is 38509021. The reversal of 38509012 is 21090583.

38509012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×38509012² = 2965888010432288, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2233 + ... + 9055.

It is an arithmetic number, because the mean of its divisors is an integer number (3009384).

Almost surely, 2^38509012 is an apocalyptic number.

It is an amenable number.

38509012 is a deficient number, since it is larger than the sum of its proper divisors (33716204).

38509012 is a wasteful number, since it uses less digits than its factorization.

38509012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6927 (or 6925 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 38509012 is about 6205.5629881583. The cubic root of 38509012 is about 337.6920154721.

Adding to 38509012 its reverse (21090583), we get a palindrome (59599595).

The spelling of 38509012 in words is "thirty-eight million, five hundred nine thousand, twelve".