38904434 has 8 divisors (see below), whose sum is σ = 58447980. Its totient is φ = 19421776.

The previous prime is 38904433. The next prime is 38904461. The reversal of 38904434 is 43440983.

It can be written as a sum of positive squares in 2 ways, for example, as 31866025 + 7038409 = 5645^2 + 2653^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 38904394 and 38904403.

It is not an unprimeable number, because it can be changed into a prime (38904433) 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, 13589 + ... + 16200.

Almost surely, 2^38904434 is an apocalyptic number.

38904434 is a deficient number, since it is larger than the sum of its proper divisors (19543546).

38904434 is a wasteful number, since it uses less digits than its factorization.

38904434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30444.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 38904434 is about 6237.3419018040. The cubic root of 38904434 is about 338.8439224321.

The spelling of 38904434 in words is "thirty-eight million, nine hundred four thousand, four hundred thirty-four".