38380121 has 4 divisors (see below), whose sum is σ = 41332452. Its totient is φ = 35427792.

The previous prime is 38380117. The next prime is 38380129. The reversal of 38380121 is 12108383.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11806096 + 26574025 = 3436^2 + 5155^2 .

It is a cyclic number.

It is not a de Polignac number, because 38380121 - 2² = 38380117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38380129) 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, 1476146 + ... + 1476171.

It is an arithmetic number, because the mean of its divisors is an integer number (10333113).

Almost surely, 2^38380121 is an apocalyptic number.

It is an amenable number.

38380121 is a deficient number, since it is larger than the sum of its proper divisors (2952331).

38380121 is a wasteful number, since it uses less digits than its factorization.

38380121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2952330.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 38380121 is about 6195.1691663747. The cubic root of 38380121 is about 337.3148387178.

The spelling of 38380121 in words is "thirty-eight million, three hundred eighty thousand, one hundred twenty-one".