38988515 has 8 divisors (see below), whose sum is σ = 46938528. Its totient is φ = 31089280.

The previous prime is 38988511. The next prime is 38988517. The reversal of 38988515 is 51588983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38988515 - 2² = 38988511 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38988515.

It is not an unprimeable number, because it can be changed into a prime (38988511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10982 + ... + 14091.

It is an arithmetic number, because the mean of its divisors is an integer number (5867316).

Almost surely, 2^38988515 is an apocalyptic number.

38988515 is a deficient number, since it is larger than the sum of its proper divisors (7950013).

38988515 is a wasteful number, since it uses less digits than its factorization.

38988515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25389.

The product of its digits is 345600, while the sum is 47.

The square root of 38988515 is about 6244.0783947673. The cubic root of 38988515 is about 339.0878520901.

The spelling of 38988515 in words is "thirty-eight million, nine hundred eighty-eight thousand, five hundred fifteen".