38216449 has 8 divisors (see below), whose sum is σ = 39789800. Its totient is φ = 36671616.

The previous prime is 38216443. The next prime is 38216471. The reversal of 38216449 is 94461283.

It can be written as a sum of positive squares in 4 ways, for example, as 24206400 + 14010049 = 4920^2 + 3743^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38216449 - 2⁹ = 38215937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (38216443) 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, 4374 + ... + 9775.

It is an arithmetic number, because the mean of its divisors is an integer number (4973725).

Almost surely, 2^38216449 is an apocalyptic number.

It is an amenable number.

38216449 is a deficient number, since it is larger than the sum of its proper divisors (1573351).

38216449 is a wasteful number, since it uses less digits than its factorization.

38216449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14259.

The product of its digits is 41472, while the sum is 37.

The square root of 38216449 is about 6181.9454057764. The cubic root of 38216449 is about 336.8346625321.

The spelling of 38216449 in words is "thirty-eight million, two hundred sixteen thousand, four hundred forty-nine".