38529909 has 18 divisors (see below), whose sum is σ = 61175478. Its totient is φ = 23350800.

The previous prime is 38529901. The next prime is 38529943. The reversal of 38529909 is 90992583.

38529909 is a `hidden beast` number, since 38 + 529 + 90 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 37271025 + 1258884 = 6105^2 + 1122^2 .

It is not a de Polignac number, because 38529909 - 2³ = 38529901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38529901) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16602 + ... + 18779.

Almost surely, 2^38529909 is an apocalyptic number.

It is an amenable number.

38529909 is a deficient number, since it is larger than the sum of its proper divisors (22645569).

38529909 is a wasteful number, since it uses less digits than its factorization.

38529909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35409 (or 35395 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 38529909 is about 6207.2464909974. The cubic root of 38529909 is about 337.7530875313.

The spelling of 38529909 in words is "thirty-eight million, five hundred twenty-nine thousand, nine hundred nine".