38984405 has 4 divisors (see below), whose sum is σ = 46781292. Its totient is φ = 31187520.

The previous prime is 38984377. The next prime is 38984459. The reversal of 38984405 is 50448983.

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 28654609 + 10329796 = 5353^2 + 3214^2 .

It is not a de Polignac number, because 38984405 - 2¹⁰ = 38983381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3898436 + ... + 3898445.

It is an arithmetic number, because the mean of its divisors is an integer number (11695323).

Almost surely, 2^38984405 is an apocalyptic number.

It is an amenable number.

38984405 is a deficient number, since it is larger than the sum of its proper divisors (7796887).

38984405 is an equidigital number, since it uses as much as digits as its factorization.

38984405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7796886.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 38984405 is about 6243.7492742742. The cubic root of 38984405 is about 339.0759366149.

The spelling of 38984405 in words is "thirty-eight million, nine hundred eighty-four thousand, four hundred five".