38429081 has 4 divisors (see below), whose sum is σ = 39154212. Its totient is φ = 37703952.

The previous prime is 38429029. The next prime is 38429099. The reversal of 38429081 is 18092483.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18092483 = 199 ⋅90917.

It can be written as a sum of positive squares in 2 ways, for example, as 20620681 + 17808400 = 4541^2 + 4220^2 .

It is a cyclic number.

It is not a de Polignac number, because 38429081 - 2¹⁸ = 38166937 is a prime.

It is a super-2 number, since 2×38429081² = 2953588533009122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38429011) 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 3 ways as a sum of consecutive naturals, for example, 362486 + ... + 362591.

It is an arithmetic number, because the mean of its divisors is an integer number (9788553).

Almost surely, 2^38429081 is an apocalyptic number.

It is an amenable number.

38429081 is a deficient number, since it is larger than the sum of its proper divisors (725131).

38429081 is an equidigital number, since it uses as much as digits as its factorization.

38429081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725130.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 38429081 is about 6199.1193729432. The cubic root of 38429081 is about 337.4582108295.

The spelling of 38429081 in words is "thirty-eight million, four hundred twenty-nine thousand, eighty-one".