38813439 has 24 divisors (see below), whose sum is σ = 60515760. Its totient is φ = 22063104.

The previous prime is 38813381. The next prime is 38813461. The reversal of 38813439 is 93431883.

It is not a de Polignac number, because 38813439 - 2¹⁶ = 38747903 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38813397 and 38813406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38814439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33087 + ... + 34239.

It is an arithmetic number, because the mean of its divisors is an integer number (2521490).

Almost surely, 2^38813439 is an apocalyptic number.

38813439 is a deficient number, since it is larger than the sum of its proper divisors (21702321).

38813439 is a wasteful number, since it uses less digits than its factorization.

38813439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399 (or 1392 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 38813439 is about 6230.0432582768. The cubic root of 38813439 is about 338.5795380615.

The spelling of 38813439 in words is "thirty-eight million, eight hundred thirteen thousand, four hundred thirty-nine".