38442915 has 24 divisors (see below), whose sum is σ = 76154208. Its totient is φ = 17573760.

The previous prime is 38442881. The next prime is 38442941. The reversal of 38442915 is 51924483.

38442915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38442915 - 2⁷ = 38442787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38442915.

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 23 ways as a sum of consecutive naturals, for example, 60706 + ... + 61335.

It is an arithmetic number, because the mean of its divisors is an integer number (3173092).

Almost surely, 2^38442915 is an apocalyptic number.

38442915 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

38442915 is a deficient number, since it is larger than the sum of its proper divisors (37711293).

38442915 is a wasteful number, since it uses less digits than its factorization.

38442915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122059 (or 122056 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 38442915 is about 6200.2350761886. The cubic root of 38442915 is about 337.4986995835.

The spelling of 38442915 in words is "thirty-eight million, four hundred forty-two thousand, nine hundred fifteen".