38259809 has 16 divisors (see below), whose sum is σ = 47380608. Its totient is φ = 30143232.

The previous prime is 38259769. The next prime is 38259821. The reversal of 38259809 is 90895283.

It is a de Polignac number, because none of the positive numbers 2^k-38259809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38259809.

It is not an unprimeable number, because it can be changed into a prime (38259839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1379 + ... + 8855.

It is an arithmetic number, because the mean of its divisors is an integer number (2961288).

Almost surely, 2^38259809 is an apocalyptic number.

It is an amenable number.

38259809 is a deficient number, since it is larger than the sum of its proper divisors (9120799).

38259809 is a wasteful number, since it uses less digits than its factorization.

38259809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7544.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 38259809 is about 6185.4513982409. The cubic root of 38259809 is about 336.9620041281.

The spelling of 38259809 in words is "thirty-eight million, two hundred fifty-nine thousand, eight hundred nine".