38138801 has 4 divisors (see below), whose sum is σ = 38151204. Its totient is φ = 38126400.

The previous prime is 38138797. The next prime is 38138809. The reversal of 38138801 is 10883183.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 35093776 + 3045025 = 5924^2 + 1745^2 .

It is a cyclic number.

It is not a de Polignac number, because 38138801 - 2² = 38138797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38138809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2261 + ... + 9021.

It is an arithmetic number, because the mean of its divisors is an integer number (9537801).

Almost surely, 2^38138801 is an apocalyptic number.

It is an amenable number.

38138801 is a deficient number, since it is larger than the sum of its proper divisors (12403).

38138801 is an equidigital number, since it uses as much as digits as its factorization.

38138801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12402.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 38138801 is about 6175.6619888074. The cubic root of 38138801 is about 336.6063814984.

The spelling of 38138801 in words is "thirty-eight million, one hundred thirty-eight thousand, eight hundred one".