38984409 has 40 divisors (see below), whose sum is σ = 62319840. Its totient is φ = 24214464.

The previous prime is 38984377. The next prime is 38984459. The reversal of 38984409 is 90448983.

It is a happy number.

It is not a de Polignac number, because 38984409 - 2⁵ = 38984377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38984459) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 112174 + ... + 112520.

It is an arithmetic number, because the mean of its divisors is an integer number (1557996).

Almost surely, 2^38984409 is an apocalyptic number.

It is an amenable number.

38984409 is a deficient number, since it is larger than the sum of its proper divisors (23335431).

38984409 is a wasteful number, since it uses less digits than its factorization.

38984409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 38984409 is about 6243.7495945946. The cubic root of 38984409 is about 339.0759482119.

It can be divided in two parts, 38984 and 409, that added together give a palindrome (39393).

The spelling of 38984409 in words is "thirty-eight million, nine hundred eighty-four thousand, four hundred nine".