38155479 has 4 divisors (see below), whose sum is σ = 50873976. Its totient is φ = 25436984.

The previous prime is 38155409. The next prime is 38155489. The reversal of 38155479 is 97455183.

38155479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38155479 - 2⁸ = 38155223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38155479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38155409) 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 3 ways as a sum of consecutive naturals, for example, 6359244 + ... + 6359249.

It is an arithmetic number, because the mean of its divisors is an integer number (12718494).

Almost surely, 2^38155479 is an apocalyptic number.

38155479 is a deficient number, since it is larger than the sum of its proper divisors (12718497).

38155479 is a wasteful number, since it uses less digits than its factorization.

38155479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12718496.

The product of its digits is 151200, while the sum is 42.

The square root of 38155479 is about 6177.0121418045. The cubic root of 38155479 is about 336.6554400509.

The spelling of 38155479 in words is "thirty-eight million, one hundred fifty-five thousand, four hundred seventy-nine".