38215512 has 96 divisors (see below), whose sum is σ = 110522880. Its totient is φ = 11901120.

The previous prime is 38215511. The next prime is 38215531. The reversal of 38215512 is 21551283.

It is a happy number.

38215512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38215511) 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 23 ways as a sum of consecutive naturals, for example, 77587 + ... + 78077.

It is an arithmetic number, because the mean of its divisors is an integer number (1151280).

Almost surely, 2^38215512 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 38215512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55261440).

38215512 is an abundant number, since it is smaller than the sum of its proper divisors (72307368).

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

38215512 is a wasteful number, since it uses less digits than its factorization.

38215512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 566 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 38215512 is about 6181.8696201068. The cubic root of 38215512 is about 336.8319096455.

Adding to 38215512 its reverse (21551283), we get a palindrome (59766795).

The spelling of 38215512 in words is "thirty-eight million, two hundred fifteen thousand, five hundred twelve".