39242515 has 8 divisors (see below), whose sum is σ = 50713488. Its totient is φ = 28979040.

The previous prime is 39242513. The next prime is 39242519. The reversal of 39242515 is 51524293.

39242515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 39242515 - 2¹ = 39242513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39242513) 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 7 ways as a sum of consecutive naturals, for example, 301801 + ... + 301930.

It is an arithmetic number, because the mean of its divisors is an integer number (6339186).

Almost surely, 2^39242515 is an apocalyptic number.

39242515 is a deficient number, since it is larger than the sum of its proper divisors (11470973).

39242515 is a wasteful number, since it uses less digits than its factorization.

39242515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603749.

The product of its digits is 10800, while the sum is 31.

The square root of 39242515 is about 6264.3846465555. The cubic root of 39242515 is about 339.8226150832.

The spelling of 39242515 in words is "thirty-nine million, two hundred forty-two thousand, five hundred fifteen".