38390029 has 8 divisors (see below), whose sum is σ = 40774968. Its totient is φ = 36019200.

The previous prime is 38390017. The next prime is 38390039. The reversal of 38390029 is 92009383.

It can be written as a sum of positive squares in 4 ways, for example, as 5062500 + 33327529 = 2250^2 + 5773^2 .

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 38390029 - 2²¹ = 36292877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38389976 and 38390003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38390039) 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, 2379 + ... + 9079.

It is an arithmetic number, because the mean of its divisors is an integer number (5096871).

Almost surely, 2^38390029 is an apocalyptic number.

It is an amenable number.

38390029 is a deficient number, since it is larger than the sum of its proper divisors (2384939).

38390029 is a wasteful number, since it uses less digits than its factorization.

38390029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7055.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 38390029 is about 6195.9687700956. The cubic root of 38390029 is about 337.3438626654.

The spelling of 38390029 in words is "thirty-eight million, three hundred ninety thousand, twenty-nine".