38809436 has 24 divisors (see below), whose sum is σ = 72349200. Its totient is φ = 18152192.

The previous prime is 38809423. The next prime is 38809439. The reversal of 38809436 is 63490883.

It is a junction number, because it is equal to n+sod(n) for n = 38809393 and 38809402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38809439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10115 + ... + 13413.

It is an arithmetic number, because the mean of its divisors is an integer number (3014550).

Almost surely, 2^38809436 is an apocalyptic number.

It is an amenable number.

38809436 is a deficient number, since it is larger than the sum of its proper divisors (33539764).

38809436 is a wasteful number, since it uses less digits than its factorization.

38809436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493 (or 3491 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 38809436 is about 6229.7219841659. The cubic root of 38809436 is about 338.5678979310.

The spelling of 38809436 in words is "thirty-eight million, eight hundred nine thousand, four hundred thirty-six".