38509394 has 48 divisors (see below), whose sum is σ = 74118240. Its totient is φ = 14837760.

The previous prime is 38509349. The next prime is 38509417. The reversal of 38509394 is 49390583.

38509394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149714 + ... + 149970.

It is an arithmetic number, because the mean of its divisors is an integer number (1544130).

Almost surely, 2^38509394 is an apocalyptic number.

38509394 is a deficient number, since it is larger than the sum of its proper divisors (35608846).

38509394 is a wasteful number, since it uses less digits than its factorization.

38509394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 38509394 is about 6205.5937669171. The cubic root of 38509394 is about 337.6931320759.

The spelling of 38509394 in words is "thirty-eight million, five hundred nine thousand, three hundred ninety-four".