38394434 has 24 divisors (see below), whose sum is σ = 64529460. Its totient is φ = 17105088.

The previous prime is 38394403. The next prime is 38394451. The reversal of 38394434 is 43449383.

It can be written as a sum of positive squares in 6 ways, for example, as 11323225 + 27071209 = 3365^2 + 5203^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 7844 + ... + 11760.

Almost surely, 2^38394434 is an apocalyptic number.

38394434 is a deficient number, since it is larger than the sum of its proper divisors (26135026).

38394434 is a wasteful number, since it uses less digits than its factorization.

38394434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3974 (or 3961 counting only the distinct ones).

The product of its digits is 124416, while the sum is 38.

The square root of 38394434 is about 6196.3242329626. The cubic root of 38394434 is about 337.3567648254.

The spelling of 38394434 in words is "thirty-eight million, three hundred ninety-four thousand, four hundred thirty-four".