38457155 has 8 divisors (see below), whose sum is σ = 50343984. Its totient is φ = 27968800.

The previous prime is 38457151. The next prime is 38457163. The reversal of 38457155 is 55175483.

38457155 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 38457155 - 2² = 38457151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38457151) 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, 349556 + ... + 349665.

It is an arithmetic number, because the mean of its divisors is an integer number (6292998).

Almost surely, 2^38457155 is an apocalyptic number.

38457155 is a deficient number, since it is larger than the sum of its proper divisors (11886829).

38457155 is a wasteful number, since it uses less digits than its factorization.

38457155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699237.

The product of its digits is 84000, while the sum is 38.

The square root of 38457155 is about 6201.3833134229. The cubic root of 38457155 is about 337.5403664567.

The spelling of 38457155 in words is "thirty-eight million, four hundred fifty-seven thousand, one hundred fifty-five".