38478029 has 8 divisors (see below), whose sum is σ = 38829240. Its totient is φ = 38128896.

The previous prime is 38478017. The next prime is 38478047. The reversal of 38478029 is 92087483.

It can be written as a sum of positive squares in 4 ways, for example, as 13225 + 38464804 = 115^2 + 6202^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 38478029 - 2²⁰ = 37429453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38478229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83969 + ... + 84425.

It is an arithmetic number, because the mean of its divisors is an integer number (4853655).

Almost surely, 2^38478029 is an apocalyptic number.

It is an amenable number.

38478029 is a deficient number, since it is larger than the sum of its proper divisors (351211).

38478029 is a wasteful number, since it uses less digits than its factorization.

38478029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 38478029 is about 6203.0660966977. The cubic root of 38478029 is about 337.6014261234.

The spelling of 38478029 in words is "thirty-eight million, four hundred seventy-eight thousand, twenty-nine".